RC1117S285T

RC1117S285T Datasheet

RC1117

Part	Datasheet
RC1117S285T	RC1117S285T (pdf)

Related Parts	Information
RC1117S33T	RC1117S33T
RC1117M5	RC1117M5
RC1117M33	RC1117M33
RC1117M285	RC1117M285
RC1117M	RC1117M
RC1117ST	RC1117ST
RC1117DX	RC1117DX

PDF Datasheet Preview
RC1117 1A Adjustable/Fixed Low Dropout Linear Regulator • Low dropout voltage • Load regulation typical • Trimmed current limit • On-chip thermal limiting • Standard SOT-223, TO-263, and TO-252 packages • Three-terminal adjustable or 2.5V, 2.85V, 3.3V, 5V • Active SCSI terminators • High linear regulators • Post regulators for switching supplies • Battery chargers • 5V to 3.3V linear regulators • Motherboard clock supplies The RC1117 and RC1117-2.5, and -5 are low dropout three-terminal regulators with 1A output current capability. These devices have been optimized for low voltage where transient response and minimum input voltage are critical. The 2.85V version is designed to be used in Active Terminators for SCSI bus. 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 RC1117 into the load, increasing The RC1117 series regulators are available in the industrystandard SOT-223, TO-263 D2PAK , and TO-252 DPAK power packages. VIN = 3.3V 10µF RC1117 VOUT VOUT = VREF 1 + R2/R1 + IAdj • R2 VIN = 5V 10µF RC1117-2.85 VOUT 1.5V at 1A 22µF 2.85V at 1A 22µF PRODUCT SPECIFICATION RC1117 Pin Assignments Tab is VOUT Front View 3 2 1 IN OUT ADJ/GND 4-Lead Plastic SOT-223 ΘJC = 15°C/W* Tab is VOUT ADJ/ 3-Lead Plastic TO-252 ΘJC = 3°C/W* Tab is VOUT ADJ/ OUT IN GND 3-Lead Plastic TO-263 ΘJC = 3°C/W* *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 Operating Junction Temperature Range Storage Temperature Range Lead Temperature Soldering, 10 sec. Min. Max. Unit RC1117 Ordering Information Product Number RC1117DT RC1117M RC1117MT RC1117ST RC1117D25T RC1117M25 RC1117M25T RC1117S25T RC1117M285 RC1117M285T RC1117S285T RC1117D33T RC1117M33 RC1117M33T RC1117S33T RC1117D5T RC1117M5 RC1117M5T RC1117S5T Output Adjustable volt 5 volt 5 volt 5 volt 5 volt Package TO-252 in tape and reel TO-263 TO-263 in tape and reel SOT-223 in tape and reel TO-252 in tape and reel TO-263 TO-263 in tape and reel SOT-223 in tape and reel TO-263 TO-263 in tape and reel SOT-223 in tape and reel TO-252 in tape and reel TO-263 TO-263 in tape and reel SOT-223 in tape and reel TO-252 in tape and reel TO-263 TO-263 in tape and reel SOT-223 in tape and reel RC1117 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. 10/16/03 0.0m 005 Stock#DS30001117 2001 Fairchild Semiconductor Corporation

PDF Datasheet Preview

RC1117
1A Adjustable/Fixed Low Dropout Linear Regulator
• Low dropout voltage
• Load regulation typical
• Trimmed current limit
• On-chip thermal limiting
• Standard SOT-223, TO-263, and TO-252 packages
• Three-terminal adjustable or 2.5V, 2.85V, 3.3V, 5V
• Active SCSI terminators
• High linear regulators
• Post regulators for switching supplies
• Battery chargers
• 5V to 3.3V linear regulators
• Motherboard clock supplies

The RC1117 and RC1117-2.5, and -5 are low dropout three-terminal regulators with 1A output current capability. These devices have been optimized for low voltage where transient response and minimum input voltage are critical. The 2.85V version is designed to be used in Active Terminators for SCSI bus.

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 RC1117 into the load, increasing

The RC1117 series regulators are available in the industrystandard SOT-223, TO-263 D2PAK , and TO-252 DPAK power packages.

VIN = 3.3V
10µF

RC1117

VOUT

VOUT = VREF 1 + R2/R1 + IAdj
• R2

VIN = 5V
10µF

RC1117-2.85

VOUT
1.5V at 1A
22µF
2.85V at 1A
22µF

PRODUCT SPECIFICATION

RC1117

Pin Assignments

Tab is VOUT

Front View 3 2 1

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

Tab is VOUT

ADJ/
3-Lead Plastic TO-252 ΘJC = 3°C/W*

Tab is VOUT

ADJ/ OUT IN GND
3-Lead Plastic TO-263 ΘJC = 3°C/W*
*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 Operating Junction Temperature Range Storage Temperature Range Lead Temperature Soldering, 10 sec.

Min.

Max.

Unit

RC1117
Ordering Information

Product Number RC1117DT RC1117M RC1117MT RC1117ST RC1117D25T RC1117M25 RC1117M25T RC1117S25T RC1117M285 RC1117M285T RC1117S285T RC1117D33T RC1117M33 RC1117M33T RC1117S33T RC1117D5T RC1117M5 RC1117M5T RC1117S5T

Output Adjustable volt 5 volt 5 volt 5 volt 5 volt

Package TO-252 in tape and reel TO-263 TO-263 in tape and reel SOT-223 in tape and reel TO-252 in tape and reel TO-263 TO-263 in tape and reel SOT-223 in tape and reel TO-263 TO-263 in tape and reel SOT-223 in tape and reel TO-252 in tape and reel TO-263 TO-263 in tape and reel SOT-223 in tape and reel TO-252 in tape and reel TO-263 TO-263 in tape and reel SOT-223 in tape and reel

RC1117

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.
10/16/03 0.0m 005 Stock#DS30001117 2001 Fairchild Semiconductor Corporation

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Datasheet ID: RC1117S285T 634554