參數資料
型號: TC120333EHA
廠商: Microchip Technology Inc.
英文描述: PWM/PFM Step-Down Combination Regulator/Controller
中文描述: PWM / PFM切換降壓組合穩(wěn)壓器/控制器
文件頁數: 8/14頁
文件大小: 436K
代理商: TC120333EHA
TC120
DS21365B-page 8
2002 Microchip Technology Inc.
FIGURE 3-3:
SHUTDOWN CONTROL CIRCUITS
FIGURE 3-4:
SOFT START TIMING
SHDN/SS
TC120XX03
C
SS
SHDN/SS
TC120XX03
C
SS
SHDN/SS
TC120XX03
C
4.7nF
SHDN/SS
TC120XX03
R
SS
V
IN
SHDN
ONOFF
47K
2N2222
C
4.7nF
R
1
V
IN
CMOS
Gate
a) Using an Open Collector Device
b) Using a Complementary Output Device
c) Shutdown Not Used
with Pull-Up
d) Shutdown Not Used
No Pull-Up
SHDN
ONOFF
OFF
ON
0.65V
0V
1.5msec
SHDN/SS
Shutdown
Signal
X
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