SMB118 SUMMIT Microelectronics, Inc:, SMB118 Datasheet - Page 6

• Manufacturer Part Number: SMB118
• Description: Six-channel Programmable Dc-dc Power Managers With Battery Charger
• Manufacturer: SUMMIT Microelectronics, Inc:

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
SMB218 TYPICAL APPLICATION
+1.5V to 3.75 @ 65mA
USB/AC Charging
VDC = +6V
VUSB
+3.0V to +4.2V
1-cell Li-Ion
+2.7 to +6.0V
Battery Pack
Rcsb
10KΩ
NTC
VDDP
VDDCAP
BFETDRV
BCSH
BCSL
VBATT
GND
DOCK_DC
BSENSE
TSENSE
LDOIN2
LDOOUT2
SDA
SCL
POWER_FAIL
HEALTHY
nALERT
BSTAT
DCIN
PWR_EN
SHDN
nRESET
SMB218
2107 2.4 5/5/2008
PCHSEQ3
PCHSEQ1
COMPA3
COMPB3
COMP5
COMP6
COMP4
DRVH3
DRVL1
COMP1
DRVL4
DRVL3
DRVL6
DRVL5
CSH1
CSL1
VIN3
VIN4
SW4
VIN6
SW6
VIN5
SW5
FB1
FB5
FB4
FB6
Rsense2
Preliminary Specification
+0.5V to VIN7(+2.5V typ) @
+0.5V to VIN7(+2.5V typ) @
+0.5Vto VIN7(+2.5V typ) @
SMB118/218
500mA
500mA
500mA
Vbatt to +35V (+15V typ)
+0.5V to +35V (+5V typ)
@ 200mA
Buck or Boost
@ 600mA
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