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DC-DC Converter Power IC
R/C (L.Active)
18
ON
Vref 11
ON /OFF Control
19 Vcc Vboot 20
UVLO Start = 7.2V Stop = 6.7V
BOOT Vref= 6.5V
VB 8
HighSide Vref=VOUT+ 5.8V
VG 7
Bandgap Reference 5.0V 5%
Error Amp
TSD
100 150
Main Switch MOS OFF
PWM Comp
HighSide Driver
VDD 36
VOUT 1,2, 22 25
2.45 V
13 amp-
12 ampOUT
OSC
3V 1V
Q RS
CLM Vth= 0.1 0.2V
10 OSC
14 15 16
9,17
S/S OCL- OCL+ GND
26 P.GND
N/C 21 Vi
GND Vo
GND
SHINDENGEN MD1323R P
5.3V
1 26 2 25 3 24 4 23 5 22 6 21 7 20 8 19 9 18 10 17 11 16 12 15 13 14
1, 2, 22 25 36 7 8 9, 17 10 11 12 13
VOUT VDD
VG VB GND OSC Vref ampOUT amp-
14 15 16 18 19 20 21 26
S/S OCL OCL+ R/C VCC Vboot N/C P.GND
Speciļ¬cations
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