BD9634GU Datasheet, PDF (1/30 Pages) Rohm – Switching Regulator ICs

Datasheet
Switching Regulator ICs
with Built-in FET (5V)
BD9634GU
General Description
BD9634GU is a system switching regulator IC for
DSC/DVC applications to generate plural voltage high
efficiently from battery. Component for Power FET and
phase compensation are embedded so it is suitable for
compact type DSC/DVC application.
Features
 7ch DC/DC converter, 2ch LDO embedded
・CH1 Boost
－
Startup ch,Motor
・CH2 LDO
FET embedded
Analog
・CH3 Buck
FET embedded
Core
・CH4 Buck-Boost FET embedded
Digital
・CH5 Boost/Buck
－
CMOS, Memory
・CH6 Boost
－
LED
・CH7 Boost
FET embedded
CCD
・CH8 Reverse
－
CCD
・CH9 LDO
FET embedded
Analog
 Low voltage operation 2.5[V]
 CH1 supply voltage output for internal circuit
 CH1 PWM / PFM selectable
 CH4 Boost-Buck auto switching
 CH5 Boost/Buck external switching
 CH6,CH7 integrated Boost output shutdown
・CH7: Back Gate Control Function
・CH6: Load Switch integrated
 Soft-start correspondence to each channel ch
・CH3→CH4 Sequence Control integrated
・CH7→CH8 2-types Sequence Control
 Output Current Limiter (CH2,CH9),
Short Circuit Protection Function (CH3 to CH8)
Error Amp Phase Compensation integrated
(CH1,CH3,CH4,CH6 to CH8)
 Operating Frequency 1[MHz](CH1,CH3 to CH5）
500[KHz](CH6 to CH8)
Key Specifications
 VBAT Supply Voltage:
2.5V to 5.5V
 Oscillating Frequency 1:
1.0 MHz(Typ)
 Oscillating Frequency 2:
500kHz(Typ)
 ON-Resistance
CH2 PMOS
1.2Ω(Typ)
CH3 PMOS
0.45Ω(Typ)
CH3 NMOS
0.30Ω(Typ)
CH4 PMOS DOWN,UP side
0.45Ω(Typ)
CH4 NMOS DOWN,UP side
0.30Ω(Typ)
CH6 Load Switch
0.40Ω(Typ)
CH7 PMOS
4.00Ω(Typ)
CH7 NMOS
0.70Ω(Typ)
CH9 PMOS
0.90Ω(Typ)
 Operating Temperature Range:
-20°C to +85°C
Package
VCSP85H4
W (Typ) x D (Typ) x H (Max)
4.26mm x 4.26mm x 1.00mm
○Product structure : Silicon monolithic integrated circuit
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TSZ22111・14・001
〇This product has no designed protection against radioactive rays.
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TSZ02201-0313AA400620-1-2
26.Apr.2016 Rev.001