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LTC1754ES6-5#TRMPBF

Description
Charge Pump STPUP 5V 50mA 6-Pin TSOT-23 T/R
File Size201KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Download user manual Parametric View All

LTC1754ES6-5#TRMPBF Overview

Charge Pump STPUP 5V 50mA 6-Pin TSOT-23 T/R

LTC1754ES6-5#TRMPBF 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
Maximum Supply Current (mA)0.03
Output Current (mA)50
Switching Frequency (kHz)700
Efficiency (%)82.7(Typ)
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Supplier Temperature GradeExtended
PackagingTape and Reel
Pin Count6
Standard Package NameSOT
Supplier PackageTSOT-23
MountingSurface Mount
Package Height0.9(Max)
Package Length2.9
Package Width1.75(Max)
PCB changed6
Lead ShapeGull-wing
LTC1754-3.3/LTC1754-5
Micropower, Regulated
3.3V/5V Charge Pump with
Shutdown in SOT-23
FEATURES
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
Ultralow Power: I
IN
= 13
µ
A
Regulated Output Voltage: 3.3V
±
4%, 5V
±
4%
5V Output Current: 50mA (V
IN
3.0V)
3.3V Output Current: 40mA (V
IN
2.5V)
No Inductors Needed
Very Low Shutdown Current: <1µA
Shutdown Disconnects Load from V
IN
Internal Oscillator: 600kHz
Short-Circuit and Overtemperature Protected
Ultrasmall Application Circuit: (0.052 Inch
2
)
6-Pin SOT-23 Package
The LTC
®
1754 is a micropower charge pump DC/DC
converter that produces a regulated output. The input
voltage range is 2V to 4.4V for 3.3V output and 2.7V to
5.5V for 5V output. Extremely low operating current and a
low external parts count (one flying capacitor and two
small bypass capacitors at V
IN
and V
OUT
) make the LTC1754
ideally suited for small, battery-powered applications. The
total component area of the application circuit shown
below is only 0.052 inch
2
.
The LTC1754 operates as a Burst Mode
TM
switched capaci-
tor voltage doubler to produce a regulated output. It has
thermal shutdown capability and can survive a continuous
short circuit from V
OUT
to GND.
The LTC1754 is available in a 6-pin SOT-23 package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
Burst Mode is a trademark of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
s
SIM Interface Supplies for GSM Cellular Telephones
White LED Power Supplies
Li-Ion Battery Backup Supplies
Handheld Computers
Smart Card Readers
PCMCIA Local 5V Supplies
TYPICAL APPLICATIO
V
OUT
10µF
1
2
3
V
OUT
GND
C
+
V
IN
6
5
4
1µF
V
IN
10µF
OUTPUT VOLTAGE (V)
LTC1754-3.3
Output Voltage vs Supply Voltage
3.40
I
OUT
= 20mA
C
OUT
= 10µf
C
FLY
= 1µF
5.15
5.10
LTC1754-X
1754 TA01
OUTPUT VOLTAGE (V)
ON/OFF
SHDN C
3.35
T
A
= 85°C
3.30
T
A
= 25°C
T
A
= –40°C
3.25
Regulated 3.3V Output from 2V to 4.4V Input
V
OUT
= 3.3V
±
4%
I
OUT
= 0mA TO 20mA, V
IN
> 2.0V
I
OUT
= 0mA TO 40mA, V
IN
> 2.5V
Regulated 5V Output from 2.7V to 5.5V Input
V
OUT
= 5V
±
4%
I
OUT
= 0mA TO 25mA, V
IN
> 2.7V
I
OUT
= 0mA TO 50mA, V
IN
> 3.0V
3.20
2.0
2.5
3.5
4.0
3.0
SUPPLY VOLTAGE (V)
4.5
1754 TA02
U
LTC1754-5
Output Voltage vs Supply Voltage
I
OUT
= 25mA
C
OUT
= 10µF
C
FLY
= 1µF
5.05
5.00
4.95
4.90
4.85
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
2.5
3.0
3.5
4.0
4.5
SUPPLY VOLTAGE (V)
5.0
5.5
1574 TA03
U
U
1
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