BH6172GU Datasheet, PDF (1/17 Pages) Rohm – High-efficiency Power Management IC

TECHNICAL NOTE
Power Management IC Series for Mobile Phones
High-efficiency
Power Management IC
BH6172GU
● Descriptions
BH6172GU incorporates 1 DCDC+ 5 Linear LDO regulators.
It is integrated in a small 2.6mm×2.6mm size package, with 16 steps adjustable Vo’s for every channel,
low voltage output (0.8V~) to support almost any kind of mobile application now available.
● Features
1) 1ch 500mA, high efficiency Step-down Converter. (16 steps adjustable VO by I²C)
2) 5-channel CMOS-type LDOs. (16 steps adjustable VO by I²C, 150mA×3, 300mA×2)
3) Power ON/OFF control enabled by I2C interface or external pin
4) I²C compatible Interface. (Device address is “1001111”)
5) Wafer Level CSP package(2.6mm×2.6mm) for space-constrained applications
6) Discharge resistance selectable for power-down sequence ramp speed control
7) Over-current protection in all LDO regulators
8) Over-current protection in Step-down Converter
9) Over-voltage protection in Step-down Converter
10) Thermal shutdown protection
● Applications
Mobile phones, Portable game systems, Portable mp3 players, Portable DVD players, Portable TV, Portable GPS,
PDA, Portable electronic dictionaries, etc.
● Absolute maximum ratings (Ta=25℃)
Parameter
Symbol
Rating
Unit
Maximum Supply Voltage (VBAT)
VBATMAX
6.0
V
Maximum Supply Voltage (PBAT)
VPBATMAX
6.0
V
Maximum Supply Voltage (VUSB)
VUSBMAX
6.0
V
Maximum Supply Voltage (DVDD)
DVDDMAX
4.5
V
Maximum Input Voltage 1
(LX, FB, OUT1, OUT2, OUT3, OUT4,
OUT5, EN_LD1, EN_LD2, EN_LD3,
VINMAX1
VBAT + 0.3
V
EN_LD4)
Maximum Input Voltage 2
(NRST, CLK, DATA)
VINMAX2
DVDD + 0.3
V
Power Dissipation
Pd
900*¹
mW
Operating Temperature Range
Topr
-35 ～ +85
℃
Storage Temperature Range
Tstg
-55 ～ +125
℃
* This is an allowable loss of the ROHM evaluation glass epoxy board(60mm×60mm×16mm).
To use at temperature higher than 25C , derate 9.0mW per 1C.
** Must not exceed Pd or ASO.
Sep. 2008