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SC1457ISK-3.0TR

Description
Fixed Positive LDO Regulator, 3V, 0.23V Dropout, CMOS, PDSO5, SOT-23, 5 PIN
CategoryPower/power management    The power supply circuit   
File Size215KB,13 Pages
ManufacturerSEMTECH
Websitehttp://www.semtech.com
Download Datasheet Parametric View All

SC1457ISK-3.0TR Overview

Fixed Positive LDO Regulator, 3V, 0.23V Dropout, CMOS, PDSO5, SOT-23, 5 PIN

SC1457ISK-3.0TR Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerSEMTECH
Parts packaging codeSOT-23
package instructionLSSOP, TSOP5/6,.11,37
Contacts5
Reach Compliance Codeunknown
ECCN codeEAR99
AdjustabilityFIXED
Maximum drop-back voltage 10.23 V
Nominal dropback voltage 10.15 V
Maximum absolute input voltage7 V
Maximum input voltage6.5 V
Minimum input voltage2.25 V
JESD-30 codeR-PDSO-G5
JESD-609 codee0
length2.9 mm
Maximum grid adjustment rate0.012%
Maximum load regulation0.02%
Number of functions1
Output times1
Number of terminals5
Working temperatureTJ-Max125 °C
Working temperature TJ-Min-40 °C
Maximum output current 10.15 A
Maximum output voltage 13.06 V
Minimum output voltage 12.94 V
Nominal output voltage 13 V
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Encapsulate equivalent codeTSOP5/6,.11,37
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
method of packingTAPE AND REEL
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
Regulator typeFIXED POSITIVE SINGLE OUTPUT LDO REGULATOR
Maximum seat height1.45 mm
surface mountYES
technologyCMOS
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
Maximum voltage tolerance2%
width1.6 mm
150mA Ultra Low Dropout
Regulator with Undervoltage Flag
POWER MANAGEMENT
Description
The SC1457 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 SC1457 has very low dropout voltage (typically 1.1mV
at light loads and 150mV at 150mA) with better than
1.5% initial output voltage accuracy. It has a logic
compatible enable control input and an internal output
undervoltage monitor.
Designed especially for hand held, battery powered
devices, the SC1457 can be switched by a CMOS or TTL
compatible logic signal. When disabled, power
consumption drops nearly to zero. Other features include
short circuit protection, thermal shutdown protection and
reverse battery protection.
The SC1457 is available in several fixed voltages in the
tiny 5 lead SOT-23 package and the ultra low profile 5
lead TSOT-23.
SC1457
Features
Guaranteed 150mA output current
Error flag indicates output undervoltage fault
2% output accuracy guaranteed over line, load and
temperature
Very small external components - designed to work
with ceramic capacitors
Low 110µV
RMS
output noise
Very low supply current
Thermal overload protection
Reverse battery protection
Low power shutdown
Full industrial temperature range
Very low profile packaging available (1mm max.
height)
Surface mount packaging (SOT-23-5 and
TSOT-23-5)
Applications
Battery Powered Systems
Cellular Telephones
Cordless Telephones
Personal Digital Assistants
Portable Instrumentation
Modems
PCMCIA cards
Typical Application Circuit
U1
VIN
C1
1uF
1
3
IN
EN
SC1457
OUT
GND
2
FLG
5
4
R1
100k
C2
1uF
UNDERVOLTAGE FLAG
VO
Revision: November 10, 2004
1
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