FAN1539MPX

FAN1539MPX Datasheet


FAN1539/FAN1540 1A/1.3A, LDO with Low Quiescent Current

Part Datasheet
FAN1539MPX FAN1539MPX FAN1539MPX (pdf)
Related Parts Information
FAN1540D18X FAN1540D18X FAN1540D18X
FAN1540DX FAN1540DX FAN1540DX
FAN1540MMPX FAN1540MMPX FAN1540MMPX
FAN1540MPX FAN1540MPX FAN1540MPX
PDF Datasheet Preview
FAN1539/FAN1540 1A/1.3A, LDO with Low Quiescent Current

November 2005

FAN1539/FAN1540 1A/1.3A, LDO with Low Quiescent Current
• Very Low Ground Current IGND = 1mA
• Excellent Line Regulation
• Excellent Load Regulation
• Very Low Transient Overshoot
• Stable with low ESR Output Capacitor ESR =
• Thermal Shutdown
• Current Limit
• Output Options 3.3V and 1.8V
• Disk Drive Circuits
• Desktop Computers
• Laptop, Notebook Computers
• General Purpose Three Terminal Regulator

The FAN1539/FAN1540 series of high current LDOs 1.0A and 1.3A has been developed for portable applications where low quiescent current is an important requirement. The device features excellent line and load transient response which does not exceed 10% of nominal output value for full operating temperature range even during power ON cycle and short circuit removal. Internally trimmed, temperature compensated bandgap reference guarantees accuracy for full range of input voltage, output current and temperature. Included on the chip are accurate current limit and thermal shutdown protection. Device stability is achieved with only two external low ESR ceramic capacitors.

The FAN1539/FAN1540 is available in thermally enhanced 3x3mm 6-lead MLP, 5x6mm 8-lead MLP and 3-lead TO-252 packages. The 5x6mm MLP package version features a separate Kelvin sense pin for high precision applications.
Ordering Information

Product Number FAN1540MMPX FAN1539MPX FAN1540MPX FAN1540DX FAN1540D18X

Output Voltage 3.3V 3.3V 3.3V 3.3V 1.8V

Tape and Reel Information

Quantity 3000

Reel Size 7"

Package 5x6mm 8-Lead MLP in T&R 3x3mm 6-Lead MLP in T&R 3x3mm 6-Lead MLP in T&R
3-Lead TO-252 in T&R 3-Lead TO-252 in T&R

Width 8mm
2005 Fairchild Semiconductor Corporation

FAN1539/FAN1540 1A/1.3A, LDO with Low Quiescent Current

Block Diagram

BANDGAP REFERENCE

START-UP CIRCUIT

ERROR AMPLIFIER

THERMAL SHUTDOWN

CURRRENT LIMIT

VOUT

Note 1

VSENSE Note 2

Notes No connection for FAN1540MMPX. VSEN available for FAN1540MMPX.

Pin Assignments

TOP VIEW

GND VOUT VSEN
8 GND
7 GND

FAN1540
6 GND
5 GND
5x6mm 8-Lead MLP

NC 1 VOUT 2

VIN 3
6 GND 5 NC 4 NC

FAN1539/FAN1540 3x3mm 6-Lead MLP

FAN1540

VOUT
3-Lead TO-252 PACKAGE

Pin Description

Symbol VIN GND VOUT VSEN NC

Name and Function Input pin Ground Pin Tab Output pin Fixed Output Voltage Output sense pin. Connect to VOUT if Kelvin sensing is not required No Connection

FAN1539/FAN1540 1A/1.3A, LDO with Low Quiescent Current
More datasheets: SD101A-A-F | SD101A-T | SD101A-A | SD101C-T | HDD32E | 13831 | FAN1540D18X | FAN1540DX | FAN1540MMPX | FAN1540MPX


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Datasheet ID: FAN1539MPX 513868