Summit Confidential 1

Summit ProgrammableDC-DC Power Managers

SMB10X/30XSMB20X/25X/ASMB21X/22X

Summit Confidential 2

Value Proposition

High Integration Cuts Component Count/Cost• Multiple outputs plus integrated power control cuts BoM• Brings Summit’s power control technology to low cost platforms

Digital Control + NV Config for Flexibility, Power Savings and Time-to-Market• Output sequencing, soft-start and UV/OV monitor + RESET• Static and Dynamic output voltage control plus margining• Status, fault and real-time voltage/current/power monitoring• Supports optimized development with latest CPU/ASIC/SoC’s

Fits any Application• One to eight outputs per IC for simple or complex power designs• Internal FETs (1A to 20A) or external FETs (5A to 60A+)• Programmable to tune, size, efficiency, performance• Ideal for embedded or modular designs

Summit Confidential 3

Product Selector TreeSummit Programmable Power Managers

2.7-6VINExt.FET

4.5-16VINExt. FET

4.5-16VINInt. FET

4.5V-28V inputExternal FET

3-4 Outputs2A to 10A+ 1 Output 1 Output 2/3 Outputs 3 Outputs 4-8 Outputs

SMB2143 x 2-10A

SMB1174 x 10A+

SMB1134 x 2A-5A

SMB2111 x 15A+

SMB2121 x 15A+

2 Outputs

SMB1062 x 20A+

SMB1032 x 7.5A+

SMB1083 x 20A+

SMB1073 x 7.5A+

SMB209/A1 x 4A

SMB210/A1 x 6A

SMB207/A1A/1A

SMB205/A1A/2A

SMB208/A2A/2A

<5A Output5A-10A Output10A-20A Output20A-30A Output

SMB206/A3A/3A

SMB1094/8 x 20A+

>30A Output

SMB2201 x 10A

SMB2211 x 20A

1 OutputMulti-Phase

SMB306*2 40A+

SMB3093 60A+

SMB250/A3A/3A

SMB253/A6A/1.5A

SMB251/A1 x 6A

SMB252/A3A/3A/1.5A

DC-DC for any applicationInternal or External FET’s

1A to 60A+

Summit Confidential 4

System Block Diagrams (External FET)

Quad /Octal

Triple

DualChipset/ASIC

DDR RAM

AGP Gfx

SMB109

I2C/SMBus

Step-Down 1ext. FET

SystemControl

andMonitoring

StatusOutputs

ControlInputs

0.5V-5V(Prog.)20A+

DDR VDD

+4.5V to +28VVIN

Step-Down 2ext. FET

0.5V-5V(Prog.)20A+

GPU

Step-Down 0ext. FET

0.5V-5V(Prog.)20A+

DDR VTT

LDOext. FET

0.5V-5V(Prog.)

5A+

Gfx DDR

Input PowerMonitor

I/O

Core

Load SwitchController 0

Gfx VTT

Load SwitchController 1

Load SwitchController 2

Load SwitchController 3

Memory/IF

SMB108/107

I2C/SMBus

Step-Down 1ext. FET

SystemControl

andMonitoringStatus

Outputs

ControlInputs

0.5V-5V(Prog.)

20/7.5A+DDR VDD

+4.5V to +28VVIN

Step-Down 2ext. FET

0.5V-5V(Prog.)

20/7.5A+Chipset/SoC

Step-Down 0ext. FET

0.5V-5V(Prog.)

20/7.5A+CPU

SMB106/103

I2C/SMBus

Step-Down 1ext. FET

SystemControl

andMonitoring

StatusOutputs

ControlInputs

0.5V-5V(Prog.)

20/7.5A+DDR VDD

+4.5V to +28VVIN

Step-Down 0ext. FET

0.5V-5V(Prog.)

20/7.5A+CPU

Summit Confidential 5

System Block Diagrams (External FET)

Single 2

Single 3 + Quad

Single 1

System/Chipset

CPU/ASICSMB309

I2C/SMBus

SystemControl

andMonitoring

Status Outputs

Control Inputs

Core

+4.5V to +28VVIN

Step-Downext. FET

0.5V-5V (Prog.) 60A+

I/O

Input PowerMonitor

DDR

GPU

Load SwitchController 0

Load SwitchController 1

Load SwitchController 2

Load SwitchController 3

Chipset

1.25V1.0V

3.3V1.8V

LDOext. FET

0.5V-5V (Prog.) 5A+

I/O

CPU/ASICSMB306

I2C/SMBus SystemControl

andMonitoringStatus

Outputs

ControlInputs

Core+4.5V to +28VVIN

Step-Downext. FET

0.5V-5V(Prog.)40A+

Input PowerMonitor

SMB211/212

I2C/SMBus(PMBus) System

Controland

MonitoringStatus/Alert Outputs

EN/Control Input

+4.5V to +13.5VVIN

Step-Downext. FET

0.5V-5V (Prog.)20A+

ASIC/CPU/SoC

Summit Confidential 6

System Block Diagrams (Internal FET)

CPU/SoC

SMB209/10/A

SystemControl

andMonitoringPGOOD/RESET Output

Enable Input

+4.5V to +16VDC IN

Step-Downint. FET

0.8V-5.0V (Prog.)4A-6A

I2C I/F

SMB209 - 4ASMB210 - 6A

Memory

CPU/SoC

SMB205/6/7/8/A

Step-Down 1int. FET

SystemControl

andMonitoringPGOOD/RESET Output

Enable Inputs

+4.5V to +16VDC IN

Step-Down 0int. FET

0.8V-5.0V (Prog.)up to 1A-3A

0.8V-5.0V (Prog.)up to 1A-3A

I2C I/F

SMB205 - 1A+2ASMB206 - 3A+3ASMB207 - 1A+1ASMB208 - 2A+2A

Dua

l A

sync

Sing

leA

sync

Sing

le S

ync

ASIC/SoC

SMB220/221

SystemControl

andMonitoring

PGOOD/RESET

Enable

+4.5V to +13.5VDC IN Step-Down

int. FET0.5V-5.0V (Prog.)

10A/20AI2C/SMBus I/F

ASIC/SoC

SMB251/A

SystemControl

andMonitoringPGOOD/RESET Output

Enable Input

+4.5V to +16VDC IN

Step-Downint. FET

0.8V-5.0V (Prog.)6A

I2C I/F

Memory

CPU

SMB250/A

Step-Down 1int. FET

SystemControl

andMonitoringPGOOD/RESET Output

Enable Inputs

+4.5V to +16VDC IN Step-Down 0

int. FET

0.8V-5.0V (Prog.)up to 3A

0.8V-5.0V (Prog.)up to 3A

I2C I/F

Dua

l Sy

nc

DDR Memory

SMB253/A

SystemControl

andMonitoringPGOOD/RESET Output

Enable Input

+4.5V to +16VDC IN

Step-Downint. FET

0.8V-5.0V (Prog.)6A

I2C I/F

Vtt LDOint. FET

0.5 * VOUT1up to 1.5A

Sing

le/D

ual

Sync

+D

DR

DDR Memory

CPU

SMB252/A

Step-Down 1int. FET

SystemControl

andMonitoringPGOOD/RESET Output

Enable Inputs

+4.5V to +16VDC IN Step-Down 0

int. FET

0.8V-5.0V (Prog.)up to 3A

0.8V-5.0V (Prog.)up to 3A

I2C I/F

Vtt LDOint. FET

0.5 * VOUT1up to 1.5A

Sing

le S

ync

+ D

DR

Summit Confidential 7

AC-DC Adapter85-270VAC IN

14V-24VDC OUT (3-10A)

Battery Charger

Battery 2S, 3S, 4S Li-Ion

6.6V-16.8V OUT

MU

X (P

ower S

witches)

CPU Reg. (IMVP6)

Dual Chipset Reg

Dual DDR Reg

5V BUS (3A)

3.3V BUS (1A)

1.8V BUS (16A)

0.9V BUS (6A)

1.25V BUS (3A)

1.05V BUS (12-20A)

Single Chipset Reg

Dual AGP Reg

Pentium-MCPU

DDR RAM

AGP Gfx Card

MCH965PM/GM

ICH8

1.05V @ 4.3/12.2A

1.5V @ 1.9A

VCCcore 0.7V-1.3V @ 44A

VDDq 1.8V @ 12A

Vtt 0.9V @ 3A

1.8V @ 3.8A

1.5V @ 125mA

Vgddr 1.8V@ 4A

Vgcore 0.8V-1.2V @ 20A

VCCgtl 1.05V @ 5A

VCCpll 1.5V @ 130mA

3.3V @ 350mA

1.05V @ 1.2A

1.25V @ 50mA

GPU

DDR

3.3V @ 700mA

5.0V @ 2mA

1.25V @ 2.7A

Vtt 0.9V @ 3A

MAINPOW ER6.6V-24V

1.5V BUS (2A)

Dual Aux Reg

External Seq PFETs(controlled by MCU GPIO)

LDO

LDO

LDO

LDO

0.8V-1.2V BUS (20A)

1.8V BUS (4A)

LDO

Typical Notebook Power Architecture

High Cost - $7.00- $8.00 BOM

Many Disparate Power IC’s

Big PCB Footprint

Complex Power Control• At least ten power IC’s

• Needs External uC/software – requires many GPIO pins/PCB traces

Summit Confidential 8

AC-DC Adapter85-270VAC IN

14V-24VDC OUT (3-10A)

SMB330Programmable Battery

Charger

Battery 2S, 3S, 4S Li-Ion

6.6V-16.8V OUT

MAINPOW ER6.6V-24V

Pentium-MCPU

DDR RAM

AGP Gfx Card

MCH965PM/GM

ICH8

1.05V @ 4.3/12.2A

1.5V @ 1.9A

1.05V BUS (12-20A)

VCCcore 0.7V-1.3V @ 44A

0.9V BUS (6A)

Vddq 1.8V @ 12A

Vtt 0.9V @ 3A

1.5V BUS (2A) LDO

1.8V @ 3.8A

1.5V @ 125mA

Vddq 1.8V@ 4A

Vgcore 0.8V-1.2V @20A

VCCgtl 1.05V @ 5A

VCCpll 1.5V @ 130mA

3.3V @ 350mA

1.05V @ 1.2A

1.25V @ 50mA

GPU

DDR

3.3V BUS (1A) LDO

5V BUS (3A)

SMB109

CPU Reg. (IMVP6)PW M + FETs

SMB109

0.8V-1.2V (20A)

1.25V BUS (3A)

MU

X (P

ower S

witches)

3.3V @ 700mA

5.0V @ 2mA

1.25V @ 2.7A

Vtt 0.9V @ 3A

1.8V BUS (20A)

External Seq NFETs(controlled by SMB109)

Summit-Powered Notebook PC

Total system efficiency >90%

<1400mm2 (2.2in2) PCB area

• Low Cost - ~$5.00 BOM• Two Integrated IC’s replaces

ten+• Smaller PCB Area• 20% Fewer components• Easy Power Control

• I2C interface• Global RESET Control• Enable/Disable• Sequencing• Dynamic output voltage• Monitoring/Reporting

Summit Confidential 9

Typical Efficiency

VIN=12V

Summit Confidential 10

Sequencing/Dynamic Voltage

VOLTAGE(Volts)

TimeSeq/SSPosition 1

3.3V

1.2V

1.8V

2.5V

PROGRAMMABLEINDEPENDENT SLEW

RATES FOR EACHPWM /LDO CHANNEL

VOUT0

EXTSEQ2VOUT2

VOUT1

EXTSEQ0

EXTSEQ1

SINGLE PROGRAMMABLESLEW RATE FOR EXTSEQ

OUTPUTS PER EACHSEQUENCE POSITION

Power OnDelay

EXTSEQ3

VOUTLDO

Seq./SSPosition 2

Power OnDelay

Seq./SSPosition 3

Seamlessly integrated power control

-Software enable/disable- Automatic sequencing- Softstart/Slew Rate

Summit Confidential 11

Programming GUI

Develop an entire multi-output power supply in minutes with easy-to-use

GUI tool

Summit Confidential 12

SMB20X Typical Application

SMB205/6/7/8/A

GND

PVIN(4)

EN0

PGOOD/RESET

+4.5V to +16V

VDD

10/22uF

+0.8V to +5V @ 1A-3A

1uF

2.2uH-6.8uHSW0(2)

FB0

EN1 +0.8V to +5V @ 1A-3A2.2uH-6.8uH

SW1(2)

FB1

SCL

SDA

BST0

BST1

Internal5V LDO

UVLO

PWM

PWM

I2C I/F

DigitalControl

NV OTP

Oscillator

01

OutputVoltage

Sequencer

Softstart

Vref

1A-3A

1A-3A

AVIN

1-3 x 22uF

1-3 x 22uF

SMB205 - 1A+2ASMB206 - 3A+3ASMB207 - 1A+1ASMB208 - 2A+2A

Ultra-compact dual integrated programmable

DC-DC

Summit Confidential 13

SMB20X Solution Size

Actual 2-layer PCB Front/BackTypically <100mm2

12mm

Ultra-compact dual integrated programmable

DC-DC

Summit Confidential 14

SMB109VIN

SHDN#

SDA

SCL

RESET

+4.5 to +28V

VDD5

10uF

1uF DRVH0/1/2

DRVL0/1/2

SW 0/1/2

COMP0/1/2

EXTSEQ0/1/2/3

FB0/1/2

CP+

CP-

1uF

CPOUT1uF

CSH0/1/2PGND0/1/2/3

10m (optional)

CSIN

EN0/PW RON

EN1

EN2/VTTFB

ENLDO

PGOOD

SEQFB0/1/2/3

CSL0/1/2

VCC5

For VIN<5.5V

1uF

VDD5A/B

AGND (PAD)

5m

8m0.1uF

1uH3m

For >2.5VOutput

22uFx 10

22uFx 5

LDODRV

LDOFB

LDO Output+0.5V to +5V @ 5A

47uF

3 x Main Outputs+0.5V to +5V @ 25A

3 x DC-DC outputs

4 x Load SwitchOutputs

BST0/1/2

1uF

SMB10X DC-DC + Switched Load Outputs

Main DC-DC outputs

Switched LoadOutputs

eight full-loop, controlled domain

outputs for the “price” of four

LDO Output

Summit Confidential 15

SMB109 Power Monitoring

SMB109VIN

VDD5

10uF

1uF DRV

10m (optional)

CSINV

BST

Input Sense ResistorDigitized current and voltage information 8-

bit ADC

Summit Confidential 16

SMB10X DDR VDDQ/VTT Application

S

SCL

EXTSEQ0

EXTSEQ1

EXTSEQ2

EXTSEQ3LDODRV

EN0/PWRON

EN1

ENLDO

SEQFB0

SEQFB1

4m

8m 1uH3m

DRVH1

DRVL1

SW1

BST10.1uF

47uFx 5

COMP1

FB1

CSH1 For >2.5VOutput

CSL1

PGND1

VTT (VDDQ/2)@ up to 3A

40m

40m4.7uH15m

DRVH2

DRVL2

SW2

BST20.1uF

47uFx 2

COMP2

FB2

CSH2

CSL2

PGND2

VIN (+4.5V to +28V)

Typically from CH0

VDDQ (typ +2.5/1.8/1.5V) @ 20A

VDDQ output

Vtt tracking output

Complete DDR1/2/3 Power

Summit Confidential 17

Applications

SMB21X/22X• Set-top Boxes• Digital TV• Routers/Switches• Storage Equipment• POL Modules• Graphic Cards• Enterprise Printers

SMB205/6/7/8/9/10/A• Digital TVs• Set-top Boxes• Cable/DSL Modems• Disk Drives• Consumer Printers• Wireless Routers• SOHO

SMB109/309• Note/Netbooks• Servers• Desktops• Datacom• Game Consoles

SMB108/106/306• Routers• Switches• Servers• Graphics Cards• Storage Networks

SMB107/103• Set-top Boxes• Digital TV• Enterprise/SoHo

Comms• Enterprise

Printers• Embedded PCs

Summit Confidential 18

Product Selector GuideSMB309/6 SMB109 SMB108/7 SMB106/3 SMB205/6/7/8/A SMB209/10/A SMB220/1 SMB211/2 SMB113/4/7 SMB214

Input Voltage Range (V) 4.5 to 28 4.5 to 28 4.5 to 28 4.5 to 28 4.5 to 16 4.5 to 16 4.5 to 13.5 4.5 to 13.5 2.7 to 6.0** 2.7 to 6.0**

# of Outputs 6/1 8 3 2 2 1 1 1 4 3

# of Buck Outputs 1/1 3 3 2 2 1 1 1 4 3

# of LDO Outputs 1/0 1 0 0 0 0 0 0 0 0

# of Load Switch Outputs 4/0 4 0 0 0 0 0 0 0 0

Output Current (A) >60/>40 >20 >20/>7.5 >20/>7.5 1A-3A 4/6 10/20 >20 >2/>5/>10 >5

Control Mode Current Current Current Current Current Current Current Current Voltage Voltage

Switching Frequency (kHz) 300-1200 300-1200 300-1200 300-1200 500/1000 500/1000 250-1000 250-1000 400/800/1000 400/800/1000

Output Voltage Range (V) 0.5-5.0 (Prog)* 0.5-5.0 (Prog)* 0.5-5.0 (Prog)* 0.5-5.0 (Prog)* 0.8-5.0 (Prog)* 0.8-5.0 (Prog)* 0.5-5.0 (Prog)* 0.5-5.0 (Prog)* 0.5-VIN (Prog) 0.5-VIN (Prog)

Output Voltage Accuracy (%) 1 1 1 1 2.5 2.5 1 1 1.5/2.5 2.5

Internal/External FETs External External External External Internal Internal Internal External External External

Output FET Configuration N-N boot N-N boot N-N boot N-N boot N-boot N-boot N-N boot N-N boot P-N P-N

Synchronous/Asynchronous Sync Sync Sync Sync Async Async Sync Sync Both Both

Sequencing Prog Prog Prog Prog Prog Prog Prog Prog Prog Prog

Soft-start Prog Prog Prog Prog Prog Prog Prog Prog Prog Prog

OC Limit Prog Prog Prog Prog Prog Prog

Frequency Compensation External External External External Internal Internal External External External External

Static Output Voltage Prog

Dynamic Output Voltage

Fine Step Voltage Margining ("A" only) ("A" only)

Output UV/OV Monitor Prog Prog Prog Prog Prog Prog Prog Prog

RESET/POWER GOOD Output

Input Current/Voltage Monitor

PWM/PFM Light Load

Phase Interleaving (deg) 120 120 120 120 180 N/A N/A N/A 180 180

DDR VDDQ/VTT Termination

I2C/SMBus Interface

Package TBD 7x7 QFN-56 7x7 QFN-56 5x5 QFN-32 3x3 QFN-20 TSSOP-24

3x3 QFN-20 TSSOP-24 5x6 QFN-14 3x3 QFN-20 5x5 QFN-32 5x5 QFN-32

Summit Confidential 19

Schedule

Product(s) Samples/Ev ProductionSMB211/212 Available AvailableSMB205/207/208/209 Available AvailableSMB210/206 Available May’11SMB109 Available Jun’11SMB108/107 Available Jun’11SMB106/103 Available Jun’11SMB309 Available Q3’11SMB220/221 Jun’11 Q3’11SMB251/2/3 Sep’11 Q4’11