SMB218 Ver la hoja de datos (PDF) - Summit Microelectronics

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SMB218

Six-Channel Programmable DC-DC Power Managers with Battery Charger

Summit Microelectronics 

PLEASE NOTE: The SMB118 has entered End-of-Life.

SMB118/218

SMB218 TYPICAL APPLICATION

+2.7 to +6.0V

USB/AC Charging

VDC = +6V

VUSB

Rcsb

Battery Pack

+3.0V to +4.2V

1-cell Li-Ion

10KΩ

NTC

+1.5V to 3.75 @ 65mA

SMB218

VBATT

VIN6

VDDP

SW6

VDDCAP

DRVL6

GND

FB6

COMP6

SDA

SCL

POWER_FAIL

HEALTHY

nALERT

nRESET

BSTAT

DCIN

PWR_EN

SHDN

VIN5

SW5

DRVL5

FB5

COMP5

VIN4

SW4

DOCK_DC

BFETDRV

DRVL4

FB4

COMP4

VIN3

PCHSEQ3

DRVH3

DRVL3

BCSH

BCSL

COMPA3

BSENSE

TSENSE

COMPB3

LDOIN2

LDOOUT2

PCHSEQ1

DRVL1

FB1

CSH1

CSL1

COMP1

+0.5V to VIN7(+2.5V typ) @

500mA

+0.5Vto VIN7(+2.5V typ) @

500mA

+0.5V to VIN7(+2.5V typ) @

500mA

+0.5V to +35V (+5V typ)

@ 600mA

Buck or Boost

Rsense2

Vbatt to +35V (+15V typ)

@ 200mA

Figure 2a – Typical application schematic of the SMB218 (QFN-48) showing external circuitry necessary to

configure the output channels as: step-up, LDO, step-down outputs and battery charger.

Summit Microelectronics, Inc

2107 3.0 10/15/2008

6

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