BD9361GUL Datasheet, PDF (1/27 Pages) Rohm – 6ch Internal Power MOSFET System Switching Regulator + 1ch LDO

BD9361GUL
Datasheet
Power LSI series for Digital Camera and Digital Video Camera
6ch Internal Power MOSFET
System Switching Regulator + 1ch LDO
BD9361GUL
●Outline
6-Channel Switching Regulator Controller for Digital Camera
that contains an internal FET, and 1-Channel LDO.
It is optimal power supply composition for Digital Camera or
Digital Video Camera which carries CMOS sensor.
It contributes to mounting area reduction, because CH1～CH4
have built-in feedback resister and WL-CSP of compact
package is adopted.
●Features
1) 2.5V minimum input operating, and Supplies power for the
internal circuit by step-up converter(CH1).
2) CH1 step-up converter, CH2 cross converter, CH3,4
step-down converter CH5 step-down converter
controllable output voltage by external resister.CH6 boost
converter for LED,
3) All channels contain internal Power MOSFET and
compensation.
4) Operating frequency of 2.0 MHz (CH3,4,5) and 1.0MHz
（CH1,2,6）.
5) Includes Over Voltage Protection (OVP) for CH1, 2, 6.
6) Includes LDO controllable output voltage by serial
communication.
7) Contains sequence control circuit for CH1～3. It is
possible to select sequence CH1⇒CH3⇒CH4⇒CH2 and
CH1⇒CH4⇒CH3⇒CH2 by SEQ_CTL pin CH1, 2, 3, 4.
CH5, 6, and LDO are possible to turn ON/OFF by serial
communication.
8) Built-In discharge switch (CH2,3,4) and contains off
sequence control circuit for CH1～4 with inverted start-up
sequence.
9) Included cut off output voltage circuit during over current
(timer latch type).
10) Include back-gate control for CH1 with soft start function
●Use
For Digital Camera, Digital Video Camera
●Function block diagram
Step UP
FET
DC/DC1
FET
FET
Buck-boost
FET
DC/DC2
FET
FET
Step Down
FET
DC/DC3
FET
Step Down
FET
DC/DC4
FET
Step Down
FET
DC/DC5
FET
LDO
FET
Step UP
DC/DC6
（Constant
Current control)
FET
Load
switch
I2C
Interface
Motor
5.0V (typ.)
System/Analog
3.3V (typ.)
Core
1.1V (typ.)
Memory
1.8V/1.5V(typ.)
CMOS sensor/etc.
1.8V (typ.)
CMOS sensor/etc.
2.8V (typ.)
LED Back light
Fig1. Function block diagram
●package
WLCSP package（3.14mm×3.14mm 0.5mm pitch）
●Key Specifications
・Input voltage accuracy :
・Output voltage
CH1 output voltage:
CH2 output voltage:
CH3 output voltage:
CH4 output voltage (VOSEL4=H):
CH4 output voltage (VOSEL4=L):
CH5 reference voltage:
CH6 reference voltage:
LDO output voltage:
・Load current
CH1 load current:
CH2 load current:
CH3 load current:
CH4 load current:
CH5 load current:
CH6 load current:
LDO load current:
・Frequency(CH3,4,5):
・Frequency (CH1,2,6):
2.5V～5.5V
5.0V±1.5%(typ.)
3.3V±1.5% (typ.)
1.1V±1.5% (typ.)
1.8V±1.5% (typ.)
1.5V±1.5% (typ.)
0.8V±1.25% (typ.)
0.4V±5.0% (typ.)
2.8V±1.5% (typ.)
1.0A (max)
800mA (max)
1.5A (max)
800mA (max)
500mA (max)
50mA (max)
200mA (max)
2.0MHz(typ.)
1.0MHz(typ.)
●PIN Assignments (TOP VIEW)
Fig2. PIN Assignments
○Products：Silicon monolithic IC ○This product is not designed for normal operation with in a radioactive
Status of this document
The Japanese version of this document is the official specification. Please use the translation version of this document as a reference to expedite understanding of the official version.
If these are any uncertainty in translation version of this document, official version takes priority.
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1
TSZ22111・14・001
TSZ02201-0Q2Q0A400010-1-2
2011.12.22 Rev.001