Power Management IC
TECHNICAL NOTE
Power Management IC Series for Mobile Phones
High-efficiency Power Management IC
BH6053GU, BH6951GU, BH69...
Description
TECHNICAL NOTE
Power Management IC Series for Mobile Phones
High-efficiency Power Management IC
BH6053GU, BH6951GU, BH6952GU
zDescription The High-Efficiency Power Management IC is considered to be the best power supply for CPU application. It integrates a step-down DC/DC converter and a multi channel LDO for portable devices. Each LDO can be controlled externally.
zFeatures 1) Fixed operation frequency (f=1.1MHz) 2) Low-current consumption at low load by using a LDO configured with a DC/DC converter 3) Includes soft start 4) Compact package 5) Includes over current limiter 6) Includes TSD (Thermal Shut Down) 7) Includes UVLO (Under Voltage Look Out)
zApplications The device is suitable for use with all portable equipment, such as cellular phones, digital cameras, portable music players, portable video games and PDAs.
z Product Lineup
Parameter LDO ch number DC/DC converter ch number
Package
BH6053GU 5ch 1ch
VCSP85H3 (32pin) 3.54mm×3.54mm
BH6951GU -
1ch VCSP85H2 (16pin) 2.60mm×2.60mm
BH6952GU 2ch 1ch
VCSP85H3 (24pin) 3.06 mm×3.06mm
Ver.B Nov.2005
zAbsolute maximum ratings
Parameter
Symbol
Limits
Maximum applied voltage BH6053GU
Power dissipation BH6951GU BH6952GU
Vmax Pd
7 1350*1 870*2 1210*3
Operating temperature range
Topr -30 to 75
Storage temperature range
Tstr -55 to 125
*1 50mm×58mm×1.75mm At glass epoxy board mounting. Reduced by 13.5mW/ oC when more than Ta=25 oC, *2 50mm×58mm×1.75mm At glass epoxy board mounting. Reduced by 8.7mW/ oC when more th...
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