TC1263 MICROCHIP [Microchip Technology], TC1263 Datasheet

TC1263

Manufacturer Part Number

TC1263

Description

500mA Fixed Output CMOS LDO with Shutdown

Manufacturer

MICROCHIP [Microchip Technology]

Datasheet

1.TC1263.pdf (14 pages)

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Features

• Very Low Dropout Voltage

• 500mA Output Current

• High Output Voltage Accuracy

• Standard or Custom Output Voltages

• Over Current and Over Temperature Protection

• SHDN Input for Active Power Management

• ERROR Output Can Be Used as a Low Battery

Applications

• Battery Operated Systems

• Portable Computers

• Medical Instruments

• Instrumentation

• Cellular/GSM/PHS Phones

• Linear Post-Regulators for SMPS

• Pagers

Device Selection Table

NOTE: xx indicates output voltages.

Available Output Voltages: 2.5, 2.8, 3.0, 3.3, 5.0.

Other output voltages are available. Please contact Microchip

Technology Inc. for details.

TC1263-xxVOA

TC1263-xxVET

TC1263-xxVAT

Detector (SOIC only)

Part Number

2002 Microchip Technology Inc.

500mA Fixed Output CMOS LDO with Shutdown

5-Pin TO-220

5-Pin DDPAK

8-Pin SOIC

Package

-40°C to +125°C

Temp. Range

Junction

Package Type

General Description

The TC1263 is a fixed output, high accuracy (typically

±0.5%) CMOS low dropout regulator. Designed

specifically for battery-operated systems, the TC1263’s

CMOS construction eliminates wasted ground current,

significantly extending battery life. Total supply current

is typically 80µA at full load (20 to 60 times lower than

in bipolar regulators).

TC1263 key features include ultra low noise operation,

very low dropout voltage (typically 350mV at full load),

and fast response to step changes in load.

The TC1263 incorporates both over temperature and

over current protection. The TC1263 is stable with an

output capacitor of only 1µF and has a maximum

output current of 500mA. It is available in 8-Pin SOIC,

5-Pin TO-220 and 5-Pin DDPAK packages.

Typical Application

5-Pin DDPAK

1 2 3

FRONT VIEW

BYPASS

TC1263

GND

OUT

4 5

GND

TC1263

TAB IS GND

8-Pin SOIC

TC1263

SHDN

OUT

5-Pin TO-220

1 2 3 4 5

TC1263

SHDN

ERROR

SHDN

1µF

DS21374B-page 1

OUT

TAB IS GND

OUT

Related parts for TC1263

TC1263 Summary of contents

Page 1

... The TC1263 incorporates both over temperature and over current protection. The TC1263 is stable with an output capacitor of only 1µF and has a maximum output current of 500mA available in 8-Pin SOIC, 5-Pin TO-220 and 5-Pin DDPAK packages ...

Page 2

... SS Power Dissipation................Internally Limited (Note 6) Maximum Voltage on Any Pin ........ V IN Operating Temperature Range...... -40°C < T Storage Temperature.......................... -65°C to +150°C TC1263 ELECTRICAL SPECIFICATIONS Electrical Characteristics 1V OUT type specifications apply for junction temperatures of -40°C to +125°C. Symbol ...

Page 3

... The regulator enters shutdown when a logic low is applied to this input. During shutdown, output voltage falls to zero and supply current is reduced to 0.05µA (typical). 3 GND Ground terminal Unregulated supply input Regulated voltage output. OUT 2002 Microchip Technology Inc. © TC1263 Description is out-of-tolerance OUT Description DS21374B-page 3 ...

Page 4

... TC1263 3.0 DETAILED DESCRIPTION The TC1263 is a precision, fixed output LDO. Unlike bipolar regulators, the TC1263’s supply current does not increase with load current. In addition, V remains stable and within regulation over the entire 0mA to I load current range (an important LOAD MAX consideration in RTC and CMOS RAM battery back-up applications) ...

Page 5

... D MAX for JA = (125 – 95) = 500mW In this example, the TC1263 dissipates a maximum of 260mW; below the allowable limit of 500mW similar manner, Equation 4-1 and Equation 4-2 can be Thermal used to calculate maximum current and/or input Resistance (θ voltage limits. For example, the maximum allowable ...

Page 6

... TC1263 5.0 TYPICAL CHARACTERISTICS Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e ...

Page 7

... TR Suffix Device Carrier Width (W) Pitch (P) Part Per Full Reel 2500 PIN 1 User Direction of Feed P Standard Reel Component Orientation for TR Suffix Device (Mark Right Side Up) Pitch (P) Part Per Full Reel TC1263 W Reel Size Reel Size 750 13 in DS21374B-page 7 ...

Page 8

... TC1263 6.3 Package Dimensions 8-Pin SOIC .157 (3.99) .150 (3.81) .050 (1.27) TYP. .197 (5.00) .189 (4.80) .020 (0.51) .010 (0.25) .013 (0.33) .004 (0.10) 5-Pin TO-220 .117 (2.97) .103 (2.62) .293 (7.44) .204 (5.18) .590 (14.99) .482 (12.24) PIN 1 DS21374B-page 8 PIN 1 .244 (6.20) .228 (5.79) .069 (1.75) .053 (1.35) ° 8 MAX. . .050 (1.27) .016 (0.40) .415 (10.54) .390 (9.91) .055 (1.40) .156 (3.96) .045 (1.14) .140 (3.56) DIA. ...

Page 9

... Package Dimensions (Continued) 5-Pin DDPAK .067 (1.70) .045 (1.14) .370 (9.40) .330 (8.38) .605 (15.37) .549 (13.95) PIN 1 .067 (1.70) TYP. 2002 Microchip Technology Inc. © .410 (10.41) .385 (9.78) 3° - 7° (5x) .026 (0.66) .014 (0.36) .037 (0.94) .026 (0.66) TC1263 .183 (4.65) .170 (4.32) .055 (1.40) .045 (1.14) .010 (0.25) .000 (0.00) .110 (2.79) .068 (1.72) 8° MAX. Dimensions: inches (mm) DS21374B-page 9 ...

Page 10

Page 11

... The Microchip Worldwide Site (www.microchip.com) Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products.  2002 Microchip Technology Inc. TC1263 DS21374B-page 11 ...

Page 12

... TC1263 NOTES: DS21374B-page 12  2002 Microchip Technology Inc. ...

Page 13

... Microchip. No licenses are con- veyed, implicitly or otherwise, under any intellectual property rights. 2002 Microchip Technology Inc. © TC1263 Trademarks The Microchip name and logo, the Microchip logo, FilterLab microID, MPLAB, PIC, PICmicro, PICMASTER, ...

Page 14

W ORLDWIDE AMERICAS Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: 480-792-7627 Web Address: http://www.microchip.com Rocky Mountain 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7966 Fax: 480-792-7456 Atlanta 500 Sugar Mill Road, ...

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