参数资料
型号: SC5205-2.5CSKT
元件分类: 固定正电压单路输出LDO稳压器
英文描述: 2.5 V FIXED POSITIVE LDO REGULATOR, 0.3 V DROPOUT, PDSO5
封装: SOT-23, 5 PIN
文件页数: 1/5页
文件大小: 54K
代理商: SC5205-2.5CSKT
150mA ULTRA LOW DROPOUT, LOW
NOISE MICROPOWER LINEAR REGULATOR
2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
SC5205
PRELIMINARY - February 7, 2000
1
FEATURES
DESCRIPTION
The SC5205 is a 150mA ultra low dropout linear
regulator with a built in CMOS/TTL logic level enable
switch, designed specifically for battery powered
applications where low quiescent current and low
dropout are critical for battery longevity.
The SC5205 uses a Semtech proprietary internal
PNP device for the pass element, providing a low
dropout voltage of 165mV at a load of 150mA, while
maintaining a ground pin current of 2750A.
The output noise is reduced by placing a 10nF
capacitor on pin 4 (bypass).
Each device contains a bandgap reference, error
amplifier, PNP pass element, thermal and current
limiting circuitry and resistor divider network for setting
output voltage.
The SC5205 is packaged in a 5 pin SOT-23 surface
mount package for a very small footprint and it
requires only a 1F capacitor on the output for a
minimum amount of external components.
APPLICATIONS
Ultra low dropout voltage - 165mV @ 150mA
Guaranteed 150mA output current
Low ground pin current at all loads
<1A quiescent current in shutdown
Wide supply voltage range 2.5V to 16V in
Wide output voltage range
Excellent line regulation
Surface mount packaging (5 pin SOT-23)
Battery Powered Systems
Cellular Telephones
Cordless Telephones
Pagers, Personal Digital Assistants
Portable Instrumentation
Cameras, Portable Consumer Equipment
PCMCIA V
CC & VPP Regulation/Switching
DEVICE
PACKAGE
SC5205-X.XCSK
(1)(2)
5 pin SOT-23
ORDERING INFORMATION
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
Notes:
(1) Where -X.X denotes voltage options. Available volt-
ages are: 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 3.6V, 3.8V,
4.0V and 5.0V.
(2) Add suffix ‘TR’ for tape and reel.
TYPICAL APPLICATION CIRCUIT
EN
VIN
VO
+
C1
1uF
U1
SC5205
1
2
3
4
5
VIN
GND
EN
BYP
VO
+
C3
1uF
C2
10nF
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