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LTC1522IS8#PBF

Description
Charge Pump STPUP 5V 20mA 8-Pin SOIC N Tube
File Size187KB,8 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric Compare View All

LTC1522IS8#PBF Overview

Charge Pump STPUP 5V 20mA 8-Pin SOIC N Tube

LTC1522IS8#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
HTS8542.39.00.01
FunctionStep Up
Output TypeFixed
Output Voltage (V)5
Minimum Operating Supply Voltage (V)2.7
Maximum Operating Supply Voltage (V)5
Maximum Supply Current (mA)0.015
Output Current (mA)20
Switching Frequency (kHz)700(Typ)
Efficiency (%)82(Typ)
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeIndustrial
PackagingTube
Pin Count8
Standard Package NameSOP
Supplier PackageSOIC N
MountingSurface Mount
Package Height1.5(Max)
Package Length5(Max)
Package Width3.99(Max)
PCB changed8
Lead ShapeGull-wing
LTC1522
Micropower, Regulated
5V Charge Pump
DC/DC Converter
FEATURES
s
s
s
s
s
s
s
DESCRIPTION
The LTC
®
1522 is a micropower charge pump DC/DC
converter that produces a regulated 5V output from a 2.7V
to 5V input supply. Extremely low supply current (6µA
typical with no load, < 1µA in shutdown) and low external
parts count (one 0.22µF flying capacitor and two 10µF
capacitors at V
IN
and V
OUT
) make the LTC1522 ideally
suited for small, light load battery-powered applications.
Typical efficiency (V
IN
= 3V) exceeds 75% with load
currents between 50µA and 20mA. Modulating the SHDN
pin keeps the typical efficiency above 75% with load
currents all the way down to 10µA.
The LTC1522 has thermal shutdown and can survive a
continuous short from V
OUT
to GND. In shutdown the
load is disconnected from V
IN
. The part is available in
8-pin MSOP and SO packages. The LTC1522 is pin
compatible with the LTC1516 in applications where
V
IN
2.7V and I
OUT
20mA.
, LTC and LT are registered trademarks of Linear Technology Corporation.
s
s
s
s
Ultralow Power: Typical Operating I
CC
= 6µA
Short-Circuit/Thermal Protected
Regulated 5V
±4%
Output Voltage
2.7V to 5V Input Range
No Inductors
Very Low I
CC
in Shutdown: < 1µA
Output Current: 10mA (V
IN
2.7V)
20mA (V
IN
3V)
Shutdown Disconnects Load from V
IN
Internal Oscillator: 700kHz
Compact Application Circuit (< 0.1 in
2
)
8-Pin MSOP and SO Packages
APPLICATIONS
s
s
s
s
s
SIM Interface Supplies for GSM Cellular Telephones
Li-Ion Battery Backup Supplies
Local 3V to 5V Conversion
Smart Card Readers
PCMCIA Local 5V Supplies
TYPICAL APPLICATION
Regulated 5V Output from a 2.7V to 5V Input
V
IN
2.7V TO 5V
1
Efficiency vs Output Current
90
V
IN
= 3V
+
10µF
2
3
NC
V
IN
V
OUT
C
+
0.22µF
NC
SHDN
LTC1522
GND
C
8
7
6
5
ON/OFF
80
EFFICIENCY (%)
+
10µF 4
70
SHDN = 0V
60
V
OUT
= 5V
±4%
I
OUT
= 0mA TO 10mA, V
IN
2.7V
I
OUT
= 0mA TO 20mA, V
IN
3V
1522 TA01
50
0.01
U
U
U
LOW I
Q
MODE
(SEE FIGURE 2)
0.1
1
10
OUTPUT CURRENT (mA)
100
1522 TA02
1

LTC1522IS8#PBF Related Products

LTC1522IS8#PBF LTC1522CMS8#PBF LTC1522CMS8#TRPBF LTC1522CS8#PBF LTC1522CS8#TRPBF LTC1522CS8 LTC1522IS8#TRPBF LTC1522IS8
Description Charge Pump STPUP 5V 20mA 8-Pin SOIC N Tube Charge Pump STPUP 5V 20mA 8-Pin MSOP Tube Charge Pump STPUP 5V 20mA 8-Pin MSOP T/R Charge Pump STPUP 5V 20mA 8-Pin SOIC N Tube Charge Pump STPUP 5V 20mA 8-Pin SOIC N T/R Charge Pump STPUP 5V 20mA 8-Pin SOIC N Charge Pump STPUP 5V 20mA 8-Pin SOIC N T/R Charge Pump STPUP 5V 20mA 8-Pin SOIC N
EU restricts the use of certain hazardous substances Compliant Compliant Compliant Compliant Compliant Not Compliant Compliant Not Compliant
ECCN (US) EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Part Status Active Active Active Active Active Unconfirmed Active Unconfirmed
Function Step Up Step Up Step Up Step Up Step Up Step Up Step Up Step Up
Output Type Fixed Fixed Fixed Fixed Fixed Fixed Fixed Fixed
Output Voltage (V) 5 5 5 5 5 5 5 5
Minimum Operating Supply Voltage (V) 2.7 2.7 2.7 2.7 2.7 2.7 2.7 2.7
Maximum Operating Supply Voltage (V) 5 5 5 5 5 5 5 5
Maximum Supply Current (mA) 0.015 0.015 0.015 0.015 0.015 0.015 0.015 0.015
Output Current (mA) 20 20 20 20 20 20 20 20
Switching Frequency (kHz) 700(Typ) 700(Typ) 700(Typ) 700(Typ) 700(Typ) 700(Typ) 700(Typ) 700(Typ)
Efficiency (%) 82(Typ) 82(Typ) 82(Typ) 82(Typ) 82(Typ) 82(Typ) 82(Typ) 82(Typ)
Maximum Operating Temperature (°C) 85 70 70 70 70 70 85 85
Supplier Temperature Grade Industrial Commercial Commercial Commercial Commercial Commercial Industrial Industrial
Pin Count 8 8 8 8 8 8 8 8
Standard Package Name SOP MSOP MSOP SOP SOP SOP SOP SOP
Supplier Package SOIC N MSOP MSOP SOIC N SOIC N SOIC N SOIC N SOIC N
Mounting Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package Height 1.5(Max) 0.86 0.86 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max) 1.5(Max)
Package Length 5(Max) 3 3 5(Max) 5(Max) 5(Max) 5(Max) 5(Max)
Package Width 3.99(Max) 3 3 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max) 3.99(Max)
PCB changed 8 8 8 8 8 8 8 8
Lead Shape Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing Gull-wing
HTS 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 8542.39.00.01 -
Packaging Tube Tube Tape and Reel Tube Tape and Reel - Tape and Reel -
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