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| 型号： | TC574402ECTRT |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO5 |
| 封装： | EIAJ, SC-74A, SOT-23A, 5 PIN |
| 文件页数： | 5/11页 |
| 文件大小： | 72K |
| 代理商： | TC574402ECTRT |
3
TC57 Series
TC57-2 1/25/00
Linear Regulator Controller
2001 Microchip Technology Inc.
DS21437A
TC57XX02ECT
VOUT
GND
SHDN
VIN
EXT
CIN
10
F
(Tantalum)
FZT749
Q1
RB
680
CL
10
F
(Tantalum)
RL
VIN
RBE
33K
1
2
ON
OFF
3
4
5
VOUT
Figure 1. Test Circuit
PIN DESCRIPTION
Pin Number
Name
Description
1
GND
Ground Terminal.
2VIN
Supply Voltage Input. Positive input voltage of 2.7V to 8.0V.
3VOUT
Regulator Voltage Sense Input. Connects to the collector of the external PNP pass transistor.
4
EXT
Base Drive for the external PNP pass transistor.
5
SHDN
Shutdown Input. The device is enabled when SHDN
≤ VIL. The device enters a low power
shutdown state when SHDN
≥ VIH. During shutdown, the output is disabled, and supply
current falls to less than 1
A.
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