DC-DC Converter Power IC
5V
N/C 7,10,15,17,22,24,29,31
R/C L.Active
5
ON
Vref 28
ON /OFF Control
6 Vcc Vboot 8
UVLO...
DC-DC Converter Power IC
5V
N/C 7,10,15,17,22,24,29,31
R/C L.Active
5
ON
Vref 28
ON /OFF Control
6 Vcc Vboot 8
UVLO Start= 7.2 V Stop= 6.7 V
BOOT Vref= 6.5V
VB 25
HighSide Vref= VOUT+ 5.8V
VGH 23
VDD 18 21
27 3.3V/5V
Bandgap Reference 5.0V 5%
TSD
100 150
High / Low MOS OFF
HighSide Driver
Error Amp
PWM Comp
2.45V
OSC f =250kHz
3V 1V
Q RS
Dead Time Control
LowSide Vref=6.5V
LowSide Driver
CLM Vth= 0.1 0.2V
VOUT 11 14
P.GND 16
32 30 amp- ampOUT
1 S/S
23
4,26
9
F/B OCL+ GND
VGL
OCL-
Vi GND
Vo
GND
1 32
SHINDENGEN MD1421N P
2 3 4
31 30 29
1 S/S 11 14 VOUT
2
F/B OCL-
16
P.GND
5 6 7
28 27 26
3 4, 26
OCL+ GND
18 21 23
VDD VGH
8
25
5
R/C 25
VB
9 10
24 23
6 VCC 27 3.3V/5V
11 12 13 14
22 21 20 19
7, 10, 15, 17, 22, 24, 29, 31
8
N/C Vboot
28 Vref 30 ampOUT
15 16
18 17
9 VGL 32 amp-
Speciļ¬cations
www.shindengen.co.jp/product/semi/
U095-6
31
DC-DC Converter Power IC
MOSFET ave peak
OCL ,OCL /
1
56 39mm2
1mm
2
V V I I V V
PD ...