LTC1517CS5-3.3#TRPBF Linear Technology, LTC1517CS5-3.3#TRPBF Datasheet

IC CHARGE PUMP REG 3.3V SOT23-5

LTC1517CS5-3.3#TRPBF

Manufacturer Part Number
LTC1517CS5-3.3#TRPBF
Description
IC CHARGE PUMP REG 3.3V SOT23-5
Manufacturer
Linear Technology
Type
Switched Capacitor (Charge Pump)r
Datasheet

Specifications of LTC1517CS5-3.3#TRPBF

Internal Switch(s)
Yes
Synchronous Rectifier
No
Number Of Outputs
1
Voltage - Output
3.3V
Current - Output
15mA
Frequency - Switching
700kHz
Voltage - Input
2 ~ 4.4 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
SOT-23-5, SC-74A, SOT-25
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC1517CS5-3.3#TRPBFLTC1517CS5-3.3
Manufacturer:
LT
Quantity:
10 000
Company:
Part Number:
LTC1517CS5-3.3#TRPBFLTC1517CS5-3.3#TRMPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
APPLICATIONS
FEATURES
TYPICAL
Cellular Telephones
Battery-Operated Equipment
Local Power Supplies
Handheld Instruments
PCMCIA Supplies
Ultralow Power: I
Short-Circuit/Thermal Protected
3.3V 4% Regulated Output
V
Output Current: 8mA (V
No Inductors
Ultrasmall Application Circuit (0.045in
700kHz Switching Frequency
Available in 5-Pin SOT-23
IN
2V TO 4.4V
Range: 2V to 4.4V
V
IN
APPLICATION
3.3 F
C1
V
U
15mA (V
IN
5
1
CC
LTC1517-3.3
0.1 F
= 6 A Typ
GND
2
IN
IN
V
C1
OUT
2V)
+
4
3
2.5V)
6.8 F
U
V
I
I
OUT
OUT
OUT
= 8mA (V
= 15mA (V
= 3.3V 4%
2
)
IN
IN
1517-3.3 TA01
2V)
2.5V)
The LTC
converter that produces a regulated 3.3V output. The input
voltage range is 2V to 4.4V, allowing a single cell lithium
battery to produce a regulated 3.3V output over the entire life
of the battery. Extremely low operating current (typically 6 A
with no load) and low external parts count (one 0.1 F flying
capacitor and two small bypass capacitors at V
make the part ideally suited for small, light load battery-
powered applications. The total printed circuit board area of
the application circuit shown below is only 0.045in
The part operates as a Burst Mode
voltage doubler to produce a regulated output. The part has
thermal shutdown capability and can survive a continuous
short circuit from V
5-pin SOT-23 package.
Burst Mode is a trademark of Linear Technology Corporation.
DESCRIPTION
, LTC and LT are registered trademarks of Linear Technology Corporation.
Micropower, Regulated
3.3V Charge Pump in a
®
3.40
3.35
3.30
3.25
3.20
1517-3.3 is a micropower charge pump DC/DC
5-Pin SOT-23 Package
0
T
C1 = 0.1 F
C
A
OUT
= 25 C
= 6.8 F
Typical Output Voltage
OUT
10
U
OUTPUT CURRENT (mA)
vs Output Current
to GND. The device is available in a
V
IN
20
= 2V
30
LTC1517-3.3
V
TM
IN
= 2.5V
switched-capacitor
1517 G05
40
IN
and V
2
.
OUT
1
)

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LTC1517CS5-3.3#TRPBF Summary of contents

Page 1

... The part operates as a Burst Mode voltage doubler to produce a regulated output. The part has thermal shutdown capability and can survive a continuous short circuit from V 5-pin SOT-23 package. , LTC and LT are registered trademarks of Linear Technology Corporation. Burst Mode is a trademark of Linear Technology Corporation. 3.40 3.35 3. ...

Page 2

... OUT OUT = 2. Note 2: Extended grade parts are 100% tested – and assured by design, characterization and correlation with statistical process controls INFORMATION ORDER PART NUMBER TOP VIEW – LTC1517CS5-3.3 2 LTC1517ES5-3 PACKAGE S5 PART MARKING LTEF = 256 LTTE MIN TYP MAX 2.0 4.4 3.17 3 ...

Page 3

W U TYPICAL PERFORMANCE CHARACTERISTICS Output Voltage vs Input Voltage 3. 8mA OUT C = 6.8 F OUT 3. 3. 3.25 3.20 2.0 ...

Page 4

LTC1517-3 TYPICAL PERFORMANCE CHARACTERISTICS Oscillator Frequency vs Input Voltage 900 800 700 600 500 2.0 2.5 3.0 3.5 INPUT VOLTAGE ( PIN FUNCTIONS V (Pin 1): Charge Pump Input Voltage. ...

Page 5

U U APPLICATIONS INFORMATION Operation The LTC1517-3.3 uses a switched-capacitor charge pump to boost 3.3V 4% regulated output. The part IN achieves regulation by sensing the output voltage through an internal resistor divider and enabling the charge ...

Page 6

LTC1517-3.3 U TYPICAL APPLICATIONS 0 – LTC1517-3.3 V GND V IN OUT 2.7V TO 4.4V 3.3 F 470 3 Q1, Q2: 2N3904 4.4V ...

Page 7

... MOLD FLASH SHALL NOT EXCEED 0.254mm 5. PACKAGE EIAJ REFERENCE IS SC-74A (EIAJ) Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. U Dimensions in inches (millimeters) unless otherwise noted ...

Page 8

... BACKUP MODE) SILICONIX Si2301DS LOGIC LOW = BACKUP MODE 1517-3.3 TA03 COMMENTS 3. Output up to 50mA Fixed or Adjustable Output up to 50mA 20mA for V 2V, 50mA for 20mA OUT Same as LTC1517-5 with Shutdown 15173fs, sn15173 LT/TP 0998 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1998 ...

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