Issue 2 Power Management Solutions for Automotive...Micro Dc/Dc XDL603/04 18V 0.5A Step-Down Micro Dc/Dc V iN MAX. 18V SEriES XDL603 XDL604 Output Current 500mA ON Resistance N-Ch

Issue 2

Power Management Solutions for Automotive

www.torex-europe.com

Micro Dc/Dc

iNTroDUcTioN

Torex’s XDL Family provides integrated coil step-down Dc/Dc solutions that offer high levels of performance and reliability for the demanding and space constrained automotive applications.

zWide input Voltage range• Up to 36V (46V Surge)

zWorld’s Smallest AEc-Q100 Qualified Buck Dc/Dc Solutions

zMinimised radiated Noise (EMi) zSuperior Thermal Performance

• Exposed Thermal Pad PackagezWettable Flanks PackagezAEc-Q100 Grade 2

• TA, MAX = 105°C

inductor

Dc/Dc chip

3.6mm

2.5mm

KEy BENEFiTS

XDL601/602

CE VIN

Lx

CIN

IC

GND

VOUT

CL

6.0m

m

5.0mm

oPTiMiSED For SPAcE coNSTrAiNED APPLicATioNS

Total Solution Size only 30mm2

reduced Design complexity

ideal for Space constrained Applications

• Sensors and Cameras• Small Control Modules• Telematics• Infotainment and HMI

DFN3625-11x

2 Find out more www.torex-europe.com

LoW rADiATED NoiSE

Below we compare the near magnetic field radiation generated by the XDL Series Micro DC/DC against the performance of our external coil DC/DC.

Test conditions: VIN=5.0, VOUT=3.3V, IOUT=300mA

XDL Micro BUcK Dc/Dc EXTErNAL coiL BUcK Dc/Dc

88.4dBµV 93.0dBµV 93.091.389.788.086.384.682.981.279.577.876.174.472.771.069.367.665.964.262.560.859.157.455.754.052.350.648.947.245.543.842.1

(dBuV)

HiGH rELiABiLiTy PAcKAGE

Thermal Metric Data (JEDEC JESD51-7)

Ambient Temperature (ºc)

Power Dissipation Pd (mW)

Thermal resistance (ºc/W)

25 210047.62

105 420

Board Mount (Tjmax = 125ºC)

High Power Dissipation Wettable Flanks

XDL package structure comes with wettable flanks that can achieve 100% Automated Visual Inspection (AVI) success rate and lowers the inspection time. Furthermore, the package heat dissipation is enhanced with the use of large DC/DC thermal pad that contributes to high levels of reliability.

Ta (ºC)

Pow

er D

issi

patio

n P

d (m

W)

0

500

1000

1500

2000

2500

25 45 65 85 105 125

Pd vs Ta3.6mm

Min. Pitch = 0.5mm Dc/Dc Thermal Pad

Wettable Flanks

2.5

mm

1.6

mm

3Find out more www.torex-europe.com

Micro Dc/Dc

XDL601/02 5.5V 1.5A Step-Down Micro Dc/Dc

SEriES XDL601 XDL602

Output Current 1.5A

ONResistance

N-Ch 0.10Ω (typ)

P-Ch 0.14Ω (typ)

Input Voltage Range 2.5V ~ 5.5V

Output Voltage Range 0.8V ~ 3.3V

Switching Frequency 3.0MHz

Quiescent Current (typ.) 400µA 25µA

Control Method

Hi-SAT COT

Fixed PWMControl

PWM/PFMAuto-switching

Max Duty Cycle 100%

Protection CircuitsCurrent Limit Circuit, Short Circuit Protection,

UVLO (2.0V), Thermal Shutdown

Additional FeaturesIntegral Soft-start

Optional CL Discharge

Op. Amb. Temperature -40ºC ~ +105ºC

Package DFN3625-11A (Wettable Flank)

0102030405060708090

100

0.1 1 10 100 10000 1000

Effi

cien

cy: E

FFI (

%)

Output Current : IOUT (mA)

VIN=5.0V, CIN =10µF(C2012X7R1A106M) CL =10µF(C2012X7R1A106M)

XDL601A333 / XDL602A333

XDL601 XDL602

0102030405060708090

100

0.1 1 10 100 10000 1000

Rip

ple

Vol

tage

: Vr(

mV

)



XDL601A333 / XDL602A333

XDL601 XDL602

CIN

VINVIN

CEVOUT

L2

L1 Lx

AGND PGND

CL

VOUT

EFFiciENcy VS. oUTPUT cUrrENT oUTPUT riPPLE VS. oUTPUT cUrrENT

TyPicAL APPLicATioN circUiT

zintegrated coil Structure• More than 50% of PCB Area Savings• Minimised Radiated Noise (EMI)

zHigh Efficiency at 3.0MHz operation• 93% (at VIN=5.0V, VOUT=3.3V/500mA)

zEnhanced coT Technology• Fast Transient Response• Stable Frequency Operation• Superior Load Regulation

zHigh reliability• Wettable Flanks Package• High Thermal Performance

DFN3625-11A

inductor

Dc/Dc chip

2.5mm

3.6mm


Vin Max.

5.5V

1.01.52.02.53.03.54.04.55.05.56.0

0 250 500 750 150012501000

Osc

illat

ion

Freq

uenc

y: f O

SC (M

Hz)


XDL601A333

VIN = 5.5VVIN = 5.0VVIN = 4.2V

3.00

3.10

3.20

3.30

3.40

3.50

3.60

0.1 1 10 100 10000 1000

Out

put V

olta

ge: V

OU

T (V

)



XDL601A333

STABLE oSciLLATioN FrEQUENcy SUPErior LoAD rEGULATioN

Time [100µ s./div]

Out

put V

olta

ge: V

OU

T [V

]

Out

put C

urre

nt: I

OU

T [A

]

1.60

1.65

1.70

1.75

1.80

1.85

1.90

0

0.5

1.0

1.5

2.0

2.5

3.0

Out

put V

olta

ge: V

OU

T [V

]

Out

put C

urre

nt: I

OU

T [A

]

1.60

1.65

1.70

1.75

1.80

1.85

1.90

0

0.5

1.0

1.5

2.0

2.5

3.0

Time [100µ s./div]

VIN = 3.6, VOUT = 1.8V, TRISE = TFALL = 2µs, Ta = 25ºCXDL601A18362-Q : CIN = CL = 10µF, XC9235A18DMR : CIN = 4.7µF, CL = 10µF

VOUT (XDL601)VOUT (XC9235)IOUT

FAST TrANSiENT rESPoNSE

AEc-Q100Grade 2

TA(max): 105°C

Fast transient response without the weaknesses of the conventional coT technology

Stable oscillation Frequency Superior Load regulation


Micro Dc/Dc

XDL603/04 18V 0.5A Step-Down Micro Dc/Dc

Vin Max.

18V


Output Current 500mA

ONResistance

N-Ch 0.69Ω (typ)

P-Ch 0.99Ω (typ)

Input Voltage Range 3.0V ~ 18V (Ab. Max 20V)

FB Voltage Range 0.75V±1.5%



Quiescent Current (typ.) 145µA 13.5µA

Control MethodFixed PWM

ControlPWM/PFM

Auto-switching

Max Duty Cycle 100%



Additional Features

Adjustable Soft-start

Power Good Output



Package DFN3625-11B (Wettable Flank)

0

20

40

60

80

100

0.01 0.1 1 10 100 1000

Effi

cien

cy :

EFF

I (%

)


VIN: 12V, VOUT: 5.0V

0

50

100

150

200

0.01 0.1 1 10 100 1000

Rip

ple

Vol

tage

: V

r (m

V)



CIN CL

CFBRFB1

RFB2RPG

VIN

EN/SS

GND(AGND, PGND)

L2Lx L1

FB

PG



zWide input Voltage range• 3.0V ~ 18.0V

zintegrated coil Structure• More than 50% of PCB Area Savings• Minimised Radiated Noise (EMI)

zUltra-Low Quiescent current• 13.5µA in Sleep Mode• 1.65µA in Standby Mode


DFN3625-11B

inductor

Dc/Dc chip

2.5mm

3.6mm

AEc-Q100Grade 2

TA(max): 105°C


XDL605/06 36V 0.6A Step-Down Micro Dc/Dc

Vin Max.

36V



ONResistance

N-Ch 0.44Ω (typ)

P-Ch 1.12Ω (typ)







ControlPWM/PFM

Auto-switching

Max Duty Cycle 100%



Additional Features


Power Good Output



Package DFN3625-11B (Wettable Flank)

0

20

40

60

80

100

0.01 0.1 1 10 100 1000

Effi

cien

cy :

EFF

I (%

)



0

50

100

150

200

0.01 0.1 1 10 100 1000

Rip

ple

Vol

tage

: V

r (m

V)



CIN CL

CFBRFB1

RFB2RPG

VIN

EN/SS

GND(AGND, PGND)

L2Lx L1

FB

PG



zWide input Voltage range• 3.0V ~ 36.0V

z 46V Surge Voltage Protection (≤400ms) zintegrated coil Structure

• More than 50% of PCB Area Savings• Minimised Radiated Noise (EMI)



DFN3625-11B

inductor

Dc/Dc chip

2.5mm

3.6mm

AEc-Q100Grade 2

TA(max): 105°C


STEP-DoWN Dc/Dc

XD9267/68 36V 0.6A Step-Down Dc/Dc

SEriES XD9267 XD9268


ONResistance

N-Ch 0.44Ω (typ)

P-Ch 1.12Ω (typ)







ControlPWM/PFM

Auto-switching

Max Duty Cycle 100%



Additional Features


Power Good Output



Package USP-6C or SOT89-5


zWide 3V to 36V input rangez46V Surge Voltage Protection (≤400ms) zSpace Saving Solution

• Smallest-In-Class Package• Extremely Small-Value Inductor (3.3µH)• Minimised External Component Count


World’s smallest 36V

synchronousBuck dc/dc

3.3μH

CIN

VIN

EN/SS

GND

Lx

FB

PG

CL

RFB1

RFB2

CFB

RPG

L

100% duty Cycle

3.0V~36V

AdjustableSoft Start

Extremely small-value inductor

Power Good Output

1.8m

m

2.0mm


HiGH rELiABiLiTy PAcKAGE

100

80

60

40

20

00.1 1 10 100 1000


XD9267/68 Test Conditions: VIN=12V, VOUT=5.0V, FOSC=2.2MHz

Effi

cien

cy :

EFF

I (%

)

XD9267 XD9268

0.05

0.3±0.05

0.10±0.05

0.70

±0.

05

1.4±0.05

Dimensions (mm)

0.20±0.05

1.0±

0.05

(0.50)

0.25

±0.

05

(0.1)

0.6M

AX

200

150

100

50

00.1 1 10 100 1000


XD9267/68 Test Conditions: VIN=12V, VOUT=5.0V, FOSC=2.2MHz

Rip

ple

Vol

tage

: V

r (m

V)

XD9267 XD9268


Thermal Metric Data (JEDEC JESD51-7)

Ambient Temperature (ºc)

Power Dissipation Pd (mW)

Thermal resistance (ºc/W)

25 125080.00

105 250

Board Mount (Tjmax = 125ºC)

High Power Dissipation Vibration and Shock Tested Exposed Terminal Ends

The USP-6C package has undergone stringent testing to meet the demanding automotive and industrial application requirements. Heat dissipation is enhanced with the use of a large DC/DC thermal pad and the terminal ends are exposed on the side of the package enabling Automated Visual Inspection (AVI).

Ta (ºC)

Pow

er D

issi

patio

n P

d (m

W)

0

200

400

600

800

1000

1200

1400

25 45 65 85 105 125

Pd vs Ta

AEc-Q100Grade 2

TA(max): 105°C


STEP-DoWN Dc/Dc

XD9263/64 18V 0.5A Step-Down Dc/Dc

XD9242/43 6.0V 2A Step-Down Dc/Dc



ONResistance

N-Ch 0.69Ω (typ)

P-Ch 0.99Ω (typ)







ControlPWM/PFM

Auto-switching

Max Duty Cycle 100%

Protection CircuitsCurrent Limit, Short Circuit,


Additional Features


Power Good Output



Package USP-6C or SOT89-5


Output Current 2A

ONResistance

N-Ch 0.11Ω (typ)

P-Ch 0.12Ω (typ)


FB Voltage Range 0.8V±2%

Output Voltage Range 0.9V ~ VIN

Switching Frequency 1.2MHz or 2.4MHz

Quiescent Current (typ.) – 41µA


ControlPWM/PFM

Auto-switching

Max Duty Cycle 100%

Protection CircuitsCurrent Limit, Short Circuit,


Additional FeaturesAdjustable Soft-start

CL Discharge


Package USP-10B

CIN

VIN

EN/SS

GND

Lx

FB

PG

CL

RFB1

RFB2

CFB

RPG

L

Lx

PGND

PGND

FBAGND

Lx

PVIN

PVIN

AVIN

CECIN2

CIN1

VIN

VOUT

RFB1

RFB2

CFB CLL



zWide 3V to 18V input rangezSpace Saving Solution

• Smallest-In-Class Package • Extremely Small-Value Inductor • Minimised External Component Count


z2.4MHz Switching frequency• Small Inductor Size

zSmall, Low Profile Package• Integral thermal pad• 2.9 x 2.6 x 0.6mm

1.8m

m

2.0mm

AEc-Q100Grade 3

TA(max): 85°C

AEc-Q100Grade 2

TA(max): 105°C


0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

0.0 1.0 2.0 3.0 6.05.04.0

Sup

ply

Cur

rent

I SS (µ

F)

Input Voltage VIN (V)

Ta=25 VIN=VCE, CIN =1.0µF(Ceramic), CL =0.1µF(Ceramic)

XD6506B302

SUPPLy cUrrENT vs. iNPUT VoLTAGE

VoLTAGE rEGULATor

XD6506 6.0V 150mA Ultra Low Power LDo

XD6216 28V LDo with Low Quiescent current

SEriES XD6506


Drop Out Voltage 360mV @ 100mA (VOUT=3.0V)


Output Voltages1.2V, 1.5V, 1.8V, 2.5V, 2.8V,

3.0V, 3.3V or 5.0V

Output Voltage Accuracy ± 2.0%

Quiescent Current 0.8µA

Standby Current < 0.3 µA

Protection Circuits Current Limit, Short


Package SOT25

SEriES XD6216


Dropout Voltage 260mV @ IOUT=20mA

Operating Voltage Range 2.0V ~ 28V

Output Voltage Range 1.8V ~ 12V (output)

Output Voltage Accuracy ±2% or ±1%

Low Power Consumption 5.0µA

Stand-by Current 0.1µA

Protection Circuits Over Current, Thermal Shutdown


Packages SOT-89-5, SOT-25

VIN VSS CE

SOT25(Top View)

VOUT NC45

321

VIN

CIN

1.0µF

VOUT

VSSCE CL

0.1µF

VIN VOUT

VSSCECIN

1.0µFCL

0.1µF

PiN coNFiGUrATioN



zUltra-Low Quiescent current• 0.8µA typ., 1.6µA max (-40ºC≤Ta≤105ºC)

zLow Standby current• 0.01µA typ., 0.3µA max (-40ºC≤Ta≤105ºC)

zLow Quiescent current• 5.0µA

zWide ViN 2.0V ~ 2.8V

AEc-Q100Grade 2

TA(max): 105°C

AEc-Q100Grade 2

TA(max): 105°C


VoLTAGE rEGULATor

XD6702 36V 300mA High Speed LDo

SEriES XD6702


Drop Out Voltage350mV @ IOUT=100mA,

VOUT=5.0V


Output Voltages

Standard1.8V, 2.5V, 2.8V, 3.0V,3.3V, 5.0V, 6.0V, 8.0V

Custom 1.8V ~ 18.0V

Output Voltage Accuracy ± 2.0%

PSRR 65dB @1kHz

Quiescent Current 40µA

Standby Current 0.1 µA

Protection CircuitsCurrent Limit with Short Protection,

Thermal Shutdown


Package SOT89-5, DFN3030

VIN

CL

2.2µFCIN

1.0µF

INPUT

VOUT

VSS

CE


zWide 4.5V to 36V input rangez46V Surge Voltage Protection (≤400ms) zintegral Soft Start

• Inrush current protectionzLow Quiescent current

• 40µA in Sleep Mode• 0.1µA in Standby Mode

zHigh PSrr

5.15

5.10

5.05

5.00

4.95

4.90

4.85

4.80

4.75

4.70

4.65

150

120

90

60

30

0

Out

put V

olta

ge :

VO

UT (

V)

Time (500µs/div)

XD6702 Series (VOUT=5.0V)VIN=VCE=6.0V CIN=1.0µF (ceramic)

1mA 30mA

Output Current

Output Voltage

CL=2.2µFCL=1.0µFCL=4.7µF

FAST LoAD TrANSiENT rESPoNSE

7.5

6.0

4.5

3.0

1.5

0.0

-1.5

-3.0

-4.5

-6.0

-7.5

500

400

350

250

150

50

450

300

200

100

0

CE

Inpu

t Vol

tage

: V

CE (V

)O

utpu

t Vol

tage

: V

OU

T (V

)

Inru

sh C

urre

nt :

I RU

SH (m

A)

Time (100µs/div)

CE Input Voltage

Output Voltage

Inrush Current

CL=2.2µFCL=1.0µFCL=4.7µF

XD6702D501PR-GTa=25ºC, VIN=6.0V, IOUT=1mA, VCE=0V 6.0V, tr=5.0µs

iNrUSH cUrrENT ProTEcTioN

Example of the inrush current wave form at IC start-up

XD6704 60V 150mA Low Power LDo

ComingSoon

SEriES XD6704


Drop Out Voltage 250mV @ IOUT=50mA, VOUT≥5.0V

Input Voltage Range 3.0V ~ 60V


Output Voltage Accuracy ±2.0% (-40ºC ~ 125ºC)

Quiescent Current 2.0µA

Standby current 0.4µA

Protection CircuitsCurrent Limit with Short Protection,

Thermal Shutdown, Soft-start


Package SOT89-5

1.0µF1.0µF

VIN

CIN CL

VOUT

VSS

CE


AEc-Q100Grade 2

TA(max): 105°C

AEc-Q100Grade 1

TA(max): 125°C


VoLTAGE DETEcTor

XD6130/31 Voltage Detectors with Watchdog

XD6121/22/23/24 Voltage Detectors with Watchdog


Operating Voltage Range 1.5V ~ 6.0V

Detect Voltage Range 1.6V ~ 5.0V

Detect Voltage Accuracy ±1.0%

Temp Characteristics ±50ppm/ºC (typ)

Output Configuration N-Channel Open Drain

Output Logic L level at detection

Power Consumption 8.1µA

Hysteresis width VDF×5% (typ)

Additional Features

Manual RESET –

Delay Capacitance Pin

Watchdog Output Watchdog Output

– Watchdog Enable

Op. Amb. Temperature -40ºC ~ 125ºC

Package SOT-26

SEriES XD6121/22/23/24


Detect Voltage Range 1.6V ~ 5.0V

Detect Voltage Accuracy ±2.0%

Temp Characteristics ±100ppm/ºC (Typ.)

Output Configuration N-Channel Open Drain

Output Logic L level at detection

Power Consumption 5µA

Hysteresis width VDF×5% (Typ.)


Package SOT-25VIN

VSS VSS

VIN

VIN

Rpull

I/OEN/ENB

RESETB RESETBInput

WD

µP



The XD6130/XD6131 series are voltage detectors with a watchdog function. The watchdog timeout time and release delay time can be set as desired using a single external capacitor.

These voltage detectors are used for microprocessor monitoring and when the power voltage reaches the detect voltage, or an L➔H pulse is not input to the watchdog pin within the watchdog timeout time, an L level signal is output from the RESETB pin.

The XD6121/22/23/24 family of Voltage Detectors have a built-in watchdog timer function for applications where the system needs to be able to recover from code errors without human intervention.

Six watchdog timeout periods and five release delay times are available. The watchdog function can be turned OFF via the EN/ENB pin allowing the series to be used as a simple voltage detector.

WDT TiMEoUT & rELEASE DELAy

50ms

400ms

100ms

800ms

200ms

1.6s

6 time selectionsWatchdog time out period

50ms

400ms

100ms

800ms

200ms

1.6s

6 time selectionsWatchdog time out period

AEc-Q100Grade 1

TA(max): 125°C

AEc-Q100Grade 3

TA(max): 85°C




Detect Voltage Range 0.8V ~ 2.0V 1.0V ~ 5.0V

Detect Voltage Accuracy (-40ºC ~ 125ºC)

±2.7% (2.0V ≥ VDF ≥ 1.5V)

±36mV (VDF < 1.5V)

±2.7% (3.0V ≥ VDF ≥ 1.5V)

±3.0% (5.0V ≥ VDF ≥ 3.1V)

±36mV (VDF < 1.5V)

Temp Characteristics ±50ppm/ºC (Typ.)

Output Configuration CMOS or N-Channel Open Drain

Output Logic H level or L level at detection

Power Consumption 1.28µA (at Detection), 1.65µA (at Release)

Hysteresis width VDF×0.1%(Typ.) VDF×5% (Typ.)

Additional Features

Adj. Hysteresis Width –

Manual RESET

Delay Capacitance Pin

Release delay / detection delay can be set 4 time ratio patterns

Sense Pin with Surge Voltage Protection

Sense Pin


Package SOT-26, USP-6C


VoLTAGE DETEcTor

XD6132/33 High Performance Voltage Detectors

The XD6132/33 series are ultra-small voltage detectors that have high accuracy and sense pin for monitoring a rail other than VIN. High accuracy and low supply current are achieved by means of a low power, highly accurate internal reference in CMOS technology.

The sense pin is isolated from the power input pin to enable monitoring of the voltage of another power supply. Output can be maintained in the detection state even if the voltage of the power supply that is monitored drops to 0V. The sense pin is also suitable for detecting high voltages and the detection and release voltage can be set as desired using an external resistance.

12.0VRelease voltage:VDR=VDR+VHYS

Detect voltage:VDF

Internal detect voltageTime: t

Time: t

Time: t

RESETB pin voltage(MIN:VSS MAX:VIN

RESET pin voltage(MIN:VSS MAX:VIN

+B

11.3V

8.75V

6.0V

1.0V

RESETB

RESET

Cranking

tDR tDF tDR

tDR tDF tDR

VEHicLE BATTEry DETEcTioN DUriNG crANKiNG

Avoid False Detection During cranking Adjustable VDr and VDF with resistor division Adjustable Hysteresis with only one external resistor Adjustable tDT and tDr with external capacitor


EXcELLENT TEMPErATUrE cHArAcTEriSTicS rELEASE DELAy & DETEcTioN DELAy coMBiNATioN

iNTEGrATED LoAD DUMP ProTEcTioN

Even if 100V Load dump surge comes to +B, the internal surge voltage protection circuit protects the VSEN pin. When the surge comes and the VSEN voltage rises, the “SURGE VOLTAGE PROTECT BLOCK” detects it and turns on M1 which sinks 2.5mA and this current causes a voltage drop on R1 to keep VSEN safe.

XD6132 SUrGE VoLTAGE ProTEcTioN

The release delay is set by Rp and Cd and the detect delay time is set by Rn and Cd. The release delay allows you to start up correctly and the detect delay avoids any mis-detection due to noise and spikes. The XD6132/33 has five (5) different ratio configurations of Rp and Rn to fit any requirement.

VIN=3.3V, VSEN=0.9V 1.1VCd=0.1µF, Rp=288kΩ (tDR=20ms) Rn=144kΩ (tDF=10ms)

10.5

10.4

10.3

10.2

10.1

10.0

9.9

9.8

9.7

9.6

9.5

21.0

20.8

20.6

20.4

20.2

20.0

19.8

19.6

19.4

19.2

19.0-50 -25 0 25 50

Ambient Temperature : Ta(ºC)

XD6132/XD6133

Rel

ease

Del

ay T

ime

: tD

R(m

s)

Det

ect D

elay

Tim

e : t

DF(

ms)

75 100 125 150

Release Delay TimeDetect Delay Time

0ms

50V

100V

+B

200ms

Transient

Sur

ge V

olta

ge

400ms

VSEN

Surge Protection

For SaFety during load

dumP

DELAy (rp:rn)

1 : 0 144kΩ : 0Ω

1 : 0125 144kΩ : 18kΩ

1 : 1 144kΩ : 144kΩ

2 : 1 288kΩ : 144kΩ

0.076 : 1 11kΩ : 144kΩ

AEc-Q100Grade 1

TA(max): 125°C


Torex Semiconductor Europe LimitedUnit 1, The Courtyard, Whitwick Business Park, Stenson Road, Coalville, Leicestershire, LE67 4JP, UKTel: +44 (0)1530 510190 Fax: +44 (0)1530 512400 Email: [email protected] www.torex-europe.com

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Documents

Issue 2 Power Management Solutions for Automotive...Micro Dc/Dc XDL603/04 18V 0.5A Step-Down Micro Dc/Dc V iN MAX. 18V SEriES XDL603 XDL604 Output Current 500mA ON Resistance N-Ch