BD9853AFV Datasheet, PDF (6/17 Pages) Rohm – Single/Dual-output High-frequency Step-down Switching Regulato (Controller type)

BD9853AFV
●Pin Configuration
Technical Note
Fig. 10
●Pin Description
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
VCC
OUT1H
OUT1L
REGA
RT
FB1
INV1
SCP/SOFT1
SCP/SOFT2
INV2
FB2
GND
STB
OUT2L
OUT2H
REGB
Pin Descriptions
Input Supply Voltage
High Side (Main) FET Driver Output Pin (CH1)
Low Side (Synchronous) FET Driver Output Pin (CH1)
Internal Regulator Output Pin (5V Output, 1uF Ceramic Capacitor necessary)
Oscillator Frequency Adjustment Pin with external Resistor
Error Amplifier Output Pin (CH1)
Error Amplifer Negative Input Pin (CH1)
Short Circuit Protection・Soft Start Delay Time Setting Pin with External Capacitor (CH1)
Short Circuit Protection・Soft Start Delay Time Setting Pin with External Capacitor (CH2)
Error Amplifer Negative Input Pin (CH2)
Error Amplifier Output Pin (CH2)
Ground Pin
ON/OFF Control Pin
Low Side (Synchronous) FET Driver Output Pin (CH2)
High Side (Main) FET Driver Output Pin (CH2)
Internal Regulator Output Pin (VCC-5V Output, 1uF Ceramic Capacitor necessary)
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2009.05 - Rev.A