FAN1112SX

FAN1112SX Datasheet

FAN1112

Part	Datasheet
FAN1112SX	FAN1112SX (pdf)

Related Parts	Information
FAN1112DX	FAN1112DX

PDF Datasheet Preview
FAN1112 1A 1.2V Low Dropout Linear Regulator • Low dropout voltage • Load regulation typical • Trimmed current limit • On-chip thermal limiting • Standard SOT-223 and TO-252 packages • Three-terminal 1.2V • Post regulator for switching supplies • Supply for low-voltage processors The FAN1112 is a 1.2V low dropout three-terminal regulator with 1A output current capability. The device has been optimized for low voltage where transient response and minimum input voltage are critical. Current limit is trimmed to ensure output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload and ambient temperatures that would create excessive junction temperatures. Unlike PNP type regulators where up to 10% of the output current is wasted as quiescent current, the quiescent current of the FAN1112 into the load, increasing The FAN1112 regulator is available in the industry-standard SOT-223 and TO-252 DPAK power packages. VIN = 3.3V 10µF FAN1112 VOUT 1.2V at 1A 22µF PRODUCT SPECIFICATION Pin Assignments Tab is VOUT Front View 3 2 1 IN OUT GND 4-Lead Plastic SOT-223 ΘJC = 15°C/W* Front View Tab is VOUT GND OUT IN 3-Lead Plastic TO-252 ΘJC = 3°C/W* FAN1112 With package soldered to square inch copper area over backside ground plane or internal power plane., ΘJA can vary from 30°C/W to more than 50°C/W. Other mounting techniques may provide better thermal resistance than 30°C/W. Absolute Maximum Ratings Parameter VIN VOUT IOUT Operating Junction Temperature Range Storage Temperature Range Lead Temperature Soldering, 10 sec. Min. Max. Unit See Figure 1 IOUT A VIN VOUT V Figure Absolute Maximum Safe Operating Area FAN1112 PRODUCT SPECIFICATION Electrical Characteristics Operating Conditions VIN 7V, TJ = 25°C unless otherwise The • denotes which apply over the operating temperature range. Parameter Output Voltage3 Line Regulation1,2 Load Regulation1,2 Dropout Voltage Current Limit GND Pin Current Conditions Ordering Information Product Number FAN1112D FAN1112S Package TO-252 SOT-223 FAN1112 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 9/27/01 0.0m 007 Stock#DS30001112 2001 Fairchild Semiconductor Corporation

PDF Datasheet Preview

FAN1112
1A 1.2V Low Dropout Linear Regulator
• Low dropout voltage
• Load regulation typical
• Trimmed current limit
• On-chip thermal limiting
• Standard SOT-223 and TO-252 packages
• Three-terminal 1.2V
• Post regulator for switching supplies
• Supply for low-voltage processors

The FAN1112 is a 1.2V low dropout three-terminal regulator with 1A output current capability. The device has been optimized for low voltage where transient response and minimum input voltage are critical.

Current limit is trimmed to ensure output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload and ambient temperatures that would create excessive junction temperatures.

Unlike PNP type regulators where up to 10% of the output current is wasted as quiescent current, the quiescent current of the FAN1112 into the load, increasing

The FAN1112 regulator is available in the industry-standard SOT-223 and TO-252 DPAK power packages.

VIN = 3.3V
10µF

FAN1112

VOUT
1.2V at 1A
22µF

PRODUCT SPECIFICATION

Pin Assignments

Tab is VOUT

Front View 3 2 1

IN OUT GND
4-Lead Plastic SOT-223 ΘJC = 15°C/W*

Front View Tab is VOUT

GND OUT IN 3-Lead Plastic TO-252
ΘJC = 3°C/W*

FAN1112
*With package soldered to square inch copper area over backside ground plane or internal power plane., ΘJA can vary from 30°C/W to more than 50°C/W. Other mounting techniques may provide better thermal resistance than 30°C/W.

Absolute Maximum Ratings

Parameter VIN VOUT * IOUT Operating Junction Temperature Range Storage Temperature Range Lead Temperature Soldering, 10 sec.

Min.

Max.

Unit

See Figure 1

IOUT A

VIN VOUT V

Figure Absolute Maximum Safe Operating Area

FAN1112

PRODUCT SPECIFICATION

Electrical Characteristics

Operating Conditions VIN 7V, TJ = 25°C unless otherwise The
• denotes which apply over the operating temperature range.

Parameter Output Voltage3

Line Regulation1,2 Load Regulation1,2 Dropout Voltage Current Limit GND Pin Current

Conditions
Ordering Information

Product Number FAN1112D FAN1112S

Package TO-252 SOT-223

FAN1112

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:

Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and c whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user.

A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
9/27/01 0.0m 007 Stock#DS30001112 2001 Fairchild Semiconductor Corporation

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Datasheet ID: FAN1112SX 513866