FAN1950D25X

FAN1950D25X Datasheet

FAN1950 1.5A Low-Voltage, Low-Dropout Regulator

Part	Datasheet
FAN1950D25X	FAN1950D25X (pdf)

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FAN1950 1.5A Low-Voltage, Low-Dropout Regulator April 2008 FAN1950 1.5A Low-Voltage, Low-Dropout Regulator 1.5A Minimum Guaranteed Output Current 500mV Maximum Dropout at 1.5A - Ideal for 2.5V to 1.8V or 1.65V Conversion - Ideal for 3.0V to 2.5V Conversion Current Limiting and Thermal Shutdown Fast Transient Response Low Ground Current General-purpose Conversion for Low-voltage CPUs, DSPs, and FPGAs SMPS Post Regulators Cable / Satellite Set-top Boxes PCI Graphics Adapter Cards The FAN1950 is a 1.5A low-dropout linear regulator that provides a low-voltage, high-current output with a minimum of external components. This device uses a PNP output pass element, achieving a maximum 500mV dropout at 1.5A load current. Over-current limit and thermal shutdown features to ensure full protection. Ordering Information Output Voltage Package FAN1950D25X 2.5V 3-Lead TO-252 DPAK All packages are lead free per JEDEC J-STD-020B standard. 3.0V IN OUT 2.5V 10µF Packing Method Tape and Reel Figure Typical Application FAN1950 1.5A Low-Voltage Low Dropout Regulator Pin Configuration FRONT VIEW IN GND TAB 3-Lead Plastic TO-252 DPAK Figure Pin Assignment Pin Definitions Pin # 1 2 3 Name IN GND OUT Description Input Supply Voltage Ground. This pin and TAB are ground. Output Voltage 2004 Fairchild Semiconductor Corporation FAN1950 1.5A Low-Voltage Low Dropout Regulator Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Parameter VIN VEN FLAG Supply Voltage Enable Voltage 1 Flag Voltage 1,2 TJ TSTG TL PD Junction Temperature Storage Temperature Lead Soldering Temperature, 10 Seconds Power Dissipation Notes Internally connected through bond wires. Flag output cannot be pulled to a voltage higher than VIN. Min. -55 -65 Max. +150 +150 +300 Internally Limited Unit V °C °C °C W Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol VCC ΘJA TJ Parameter Supply Voltage Thermal Resistance Junction Operating Temperature Min.

PDF Datasheet Preview

FAN1950 1.5A Low-Voltage, Low-Dropout Regulator

April 2008

FAN1950 1.5A Low-Voltage, Low-Dropout Regulator
1.5A Minimum Guaranteed Output Current 500mV Maximum Dropout at 1.5A
- Ideal for 2.5V to 1.8V or 1.65V Conversion - Ideal for 3.0V to 2.5V Conversion

Current Limiting and Thermal Shutdown Fast Transient Response Low Ground Current

General-purpose Conversion for Low-voltage

CPUs, DSPs, and FPGAs

SMPS Post Regulators Cable / Satellite Set-top Boxes PCI Graphics Adapter Cards

The FAN1950 is a 1.5A low-dropout linear regulator that provides a low-voltage, high-current output with a minimum of external components. This device uses a PNP output pass element, achieving a maximum 500mV dropout at 1.5A load current. Over-current limit and thermal shutdown features to ensure full protection.
Ordering Information

Output Voltage

Package

FAN1950D25X
2.5V
3-Lead TO-252 DPAK

All packages are lead free per JEDEC J-STD-020B standard.
3.0V IN OUT 2.5V
10µF

Packing Method Tape and Reel

Figure Typical Application

FAN1950 1.5A Low-Voltage Low Dropout Regulator

Pin Configuration

FRONT VIEW

IN GND TAB
3-Lead Plastic TO-252 DPAK

Figure Pin Assignment

Pin Definitions

Pin # 1 2 3

Name IN

GND OUT

Description Input Supply Voltage Ground. This pin and TAB are ground. Output Voltage
2004 Fairchild Semiconductor Corporation

FAN1950 1.5A Low-Voltage Low Dropout Regulator

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only.

Parameter

VIN VEN FLAG

Supply Voltage Enable Voltage 1 Flag Voltage 1,2

TJ TSTG

TL PD

Junction Temperature Storage Temperature Lead Soldering Temperature, 10 Seconds Power Dissipation

Notes Internally connected through bond wires. Flag output cannot be pulled to a voltage higher than VIN.

Min. -55 -65

Max. +150 +150 +300 Internally Limited

Unit V °C °C °C W

Recommended Operating Conditions

The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings.

Symbol VCC ΘJA TJ

Parameter Supply Voltage Thermal Resistance Junction Operating Temperature

Min.

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Datasheet ID: FAN1950D25X 513881