ADP1109 datasheet(1/8 Pages) AD

部件名	ADP1109

功能描述	Micropower Low Cost Fixed 3.3 V, 5 V, 12 V and Adjustable DC-to-DC Converter

PDF	8 Pages

Scroll/Zoom	100%

制造商	AD [Analog Devices]

网页	http://www.analog.com

标志

1 / 8 page

REV. 0

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

a

ADP1109

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781/329-4700

World Wide Web Site: http://www.analog.com

Fax: 781/326-8703

Micropower Low Cost

Fixed 3.3 V, 5 V, 12 V and Adjustable

DC-to-DC Converter

FUNCTIONAL BLOCK DIAGRAMS

DRIVER

SW

VIN

GND

COMPARATOR

A1

R1

SENSE

R2

250k

SHUTDOWN

+

ADP1109-3.3: R1 = 152k

ADP1109-5:

R1 = 83k

ADP1109-12: R1 = 29k

Q1

120kHz

OSCILLATOR

1.25V

REFERENCE

Fixed Output

DRIVER

SW

VIN

GND

COMPARATOR

A1

FB

SHUTDOWN

+

ADP1109

Q1

120kHz

OSCILLATOR

1.25V

REFERENCE

Adjustable Output

FEATURES

Operates at Supply Voltages 2 V to 12 V

Fixed 3.3 V, 5 V, 12 V and Adjustable Output

Minimum External Components Required

Ground Current: 320

A

Oscillator Frequency: 120 kHz

Logic Shutdown

8-Lead DIP and SO-8 Packages

APPLICATIONS

Cellular Telephones

Single-Cell to 5 V Converters

Laptop and Palmtop Computers

Pagers

Cameras

Battery Backup Supplies

Portable Instruments

Laser Diode Drivers

Hand-Held Inventory Computers

GENERAL DESCRIPTION

The ADP1109 is a versatile step-up switching regulator. The

device requires only minimal external components to operate as

a complete switching regulator.

The ADP1109-5 can deliver 100 mA at 5 V from a 3 V input

and the ADP1109-12 can deliver 60 mA at 12 V from a 5 V

input. The device also features a logic controlled shutdown

capability that, when a logic low is applied, will shut down the

oscillator.

The 120 kHz operating frequency allows for the use of small

surface mount components. The gated oscillator capability

eliminates the need for frequency compensation.

TYPICAL APPLICATION

SW

GND

ADP1109-12

+

D1

C1

22 F

16V

SENSE

L1

33 H

VIN

5V

VIN

SHUTDOWN

SHUTDOWN/PROGRAM

VOUT

12V

60mA

Flash Memory VPP Generator

类似零件编号 - ADP1109

制造商	部件名	数据表	功能描述
Analog Devices	ADP1109A	143Kb / 8P	Micropower Low Cost Fixed 3.3 V, 5 V, 12 V and Adjustable DC-to-DC Converter REV.0
	ADP1109AAN	143Kb / 8P	Micropower Low Cost Fixed 3.3 V, 5 V, 12 V and Adjustable DC-to-DC Converter REV.0
	ADP1109AAN-12	143Kb / 8P	Micropower Low Cost Fixed 3.3 V, 5 V, 12 V and Adjustable DC-to-DC Converter REV.0
	ADP1109AAN-33	143Kb / 8P	Micropower Low Cost Fixed 3.3 V, 5 V, 12 V and Adjustable DC-to-DC Converter REV.0
	ADP1109AAN-5	143Kb / 8P	Micropower Low Cost Fixed 3.3 V, 5 V, 12 V and Adjustable DC-to-DC Converter REV.0

More results

类似说明 - ADP1109

制造商	部件名	数据表	功能描述
Analog Devices	ADP1073	442Kb / 16P	Micropower DC.DC Converter Adjustable and Fixed 3.3 V, 5 V, 12 V REV.0
	ADP1108	234Kb / 12P	Micropower DC-DC Converter Adjustable and Fixed 3.3 V, 5 V, 12 V REV.0
	ADP1109A	143Kb / 8P	Micropower Low Cost Fixed 3.3 V, 5 V, 12 V and Adjustable DC-to-DC Converter REV.0
	ADP1111	406Kb / 16P	Micropower, Step-Up/Step-Down SW Regulator; Adjustable and Fixed 3.3 V, 5 V, 12 V REV.0
Linear Technology	LT1109	212Kb / 8P	Micropower Low Cost DC/DC Converter Adjustable and Fixed 5V, 12V
Analog Devices	ADP1073	44Kb / 2P	Micropower DC-DC Converter Adjustable and Fixed 5 V, 12 V REV. 0
	ADP1108	241Kb / 12P	Micropower, DC-DC Converter Adjustable and Fixed 3.3 V, 5 V, 12 V REV. 0
	ADP1109	140Kb / 8P	Micropower Low Cost Fixed 5 V, 12 V and Adjustable DC-to-DC Converter REV. 0
	ADP1109A	151Kb / 8P	Micropower Low Cost Fixed 3.3 V, 5 V, 12 V and Adjustable DC-to-DC Converter REV. 0
Linear Technology	LT1109	195Kb / 8P	Micropower Low Cost DC/DC Converter Adjustable and Fixed 5V, 12V