SC1453ISK29TR 데이터 시트보기 (PDF) - Semtech Corporation
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SC1453ISK29TR Datasheet PDF : 14 Pages
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SC1453
150mA Ultra Low Dropout
Regulator with Low Noise Bypass
POWER MANAGEMENT
Description
The SC1453 is a low dropout linear regulator that
operates from a +2.25V to +6.5V input range and
delivers up to 150mA. A PMOS pass transistor allows
the low 75µA supply current to remain independent of
load, making these devices ideal for battery operated
portable equipment such as cellular phones, cordless
phones and personal digital assistants.
The SC1453 has a bandgap reference bypass pin for
very low noise operation - a 10nF (typ.) capacitor may be
connected between this pin and ground. Other features
include low powered shutdown, short circuit protection,
thermal shutdown protection and reverse battery
protection. The SC1453 comes in the tiny 5 lead SOT-23
package and the ultra-low profile 5 lead TSOT-23.
Features
“2982/5205” compatible pinout
Guaranteed 150 mA output current
2% output accuracy guaranteed over line, load and
temperature
Very small external components - designed to work
with ceramic capacitors
Low 26µVRMS output noise
(1.5V option, C = C = 1µF, C = 10nF)
IN
OUT
Very low supply current
BYP
Thermal overload protection
Reverse battery protection
Low power shutdown
Full industrial temperature range
Very low profile packaging available (1mm max. height)
Surface mount packaging (5 pin SOT-23 and
TSOT-23)
Available in Lead-free packages, fully WEEE and RoHS
compliant
Applications
Battery Powered Systems
Cellular Telephones
Cordless Telephones
Personal Digital Assistants
Portable Instrumentation
Modems
PCMCIA cards
Typical Application Circuit
VIN
C1
1uF
U1
1 IN
SC1453
OUT 5
3 EN GND BYP 4
2
C2
10nF
VOUT
C3
1uF
Revision: August 24, 2006
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