CM3708AIS 查看數據表（PDF） - Champion Microelectronic
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CM3708AIS Datasheet PDF : 6 Pages
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CM3708A
3A LOW-NOISE PWM STEP-DOWN REGULATOR
PIN DESCRIPTION
Pin No.
Symbol
1,16 VIN1, VIN2
2,15 PVIN1, PVIN2
3,14 LX1, LX2
4,13
5,9,12
8
6
PGND1, PGND2
AGND
AGSEN
SD
7
VREF
10 NC
11 VFB
Description
Min.
Voltage supply for internal circuits
2
Voltage supply for output power transistors
2
Inductor connection to the Drains of the internal
power MOSFETs
Ground for output power transistors
Ground for internal reference voltage divider
Ground for remote sensing
Shutdown active high. CMOS input level
0.75 x
VIN
VOUT Set Voltage
0
No Connection
Feedback node for the VOUT
Operating Rating
Typ.
Max.
Unit
2.5
5.5
V
2.5
5.5
V
5
V
VIN +
V
0.3V
VIN
V
5
V
BLOCK DIAGRAM
NC
VIN1
VIN2
SD
10
1
16
6
PVIN1 PVIN2
2
15
AGND
5
AGND
9
AGND 12
VREF
7
Oscillator Ramp Generator
PWM Controller
Error Amp
Thermal
Protection
MOS
3 LX1
14 LX2
8
AGSEN
11
VFB
4
PGND1
13
PGND2
2007/02/13 Rev1.3
Champion Microelectronic Corporation
Page 2
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