SMB119

Summit Microelectronics, Inc

3

TYPICAL APPLICATION

SMB119

COMP7

SW7

FB7

COMP6

SW6

FB6

DGND

VDD

nRESET

SDA

SCL

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

500mA

Vbatt to +35V (+15V typ) @

200mA

+2.7 to +6.0V

VDD_CAP

PWR_EN

COMPA4

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

@ 600mA

Buck or Boost

PCHSEQ4

DRVL4

DRVH4

COMP1

FB1

LDOOUT3

POWERFAIL

LDOIN3

VIN7

VIN6

COMP5

FB5

SW5

VIN5

+1.5V to 3.75 @ 50mA

COMPB4

ALERT#

DRVL7

DRVL6

+0.5Vto VIN7(+2.5V typ) @

500mA

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

500mA

DRVL5

DRVL1

Rsense1

CSH1

CSL1

Vbatt to +35V (+15V typ) @

200mA

COMP2

DRVL2

FB2

Rsense2

CSH2

CSL2

SHDN

VDDP

PCHSEQ1

PCHSEQ2

VIN4

SYS_EN

HEALTHY

Figure 2 – Typical application schematic of the SMB119 (QFN-48) showing external circuitry necessary to

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