TC1054-2.8VCT713 MICROCHIP [Microchip Technology], TC1054-2.8VCT713 Datasheet

TC1054-2.8VCT713

Manufacturer Part Number

TC1054-2.8VCT713

Description

50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown and ERROR Output

Manufacturer

MICROCHIP [Microchip Technology]

Datasheet

1.TC1054-2.8VCT713.pdf (18 pages)

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Meier Automation Equipment Co., Limited

Part Number:

TC1054-2.8VCT713

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Features

• Low Ground Current for Longer Battery Life

• Low Dropout Voltage

• Choice of 50 mA (TC1054), 100 mA (TC1055)

• High Output Voltage Accuracy

• Standard or Custom Output Voltages:

• Power-Saving Shutdown Mode

• ERROR Output Can Be Used as a Low Battery

• Overcurrent and Overtemperature Protection

• 5-Pin SOT-23 Package

• Pin Compatible Upgrades for Bipolar Regulators

Applications

• Battery Operated Systems

• Portable Computers

• Medical Instruments

• Instrumentation

• Cellular/GSM/PHS Phones

• Linear Post-Regulators for SMPS

• Pagers

Typical Application

(from Power Control Logic)

and 150 mA (TC1186) Output

- 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3.0V,

Detector or Microcontroller Reset Generator

50 mA, 100 mA and 150 mA CMOS LDOs with Shutdown

3.3V, 3.6V, 4.0V, 5.0V

Shutdown Control

GND

SHDN

TC1054

TC1055

TC1186

ERROR

OUT

1 MΩ

TC1054/TC1055/TC1186

and ERROR Output

1 µF

ERROR

OUT

General Description

The TC1054, TC1055 and TC1186 are high accuracy

(typically ±0.5%) CMOS upgrades for older (bipolar)

low dropout regulators. Designed specifically for

battery-operated

construction minimizes ground current, extending

battery life. Total supply current is typically 50 µA at full

load (20 to 60 times lower than in bipolar regulators).

The devices’ key features include low noise operation,

low dropout voltage – typically 85 mV (TC1054),

180 mV (TC1055) and 270 mV (TC1186) at full load —

and fast response to step changes in load. An error

output (ERROR) is asserted when the devices are out-

of-regulation (due to a low input voltage or excessive

output current). ERROR can be used as a low battery

warning or as a processor RESET signal (with the

addition of an external RC network). Supply current is

reduced to 0.5 µA (max), with both V

disabled when the shutdown input is low. The devices

incorporate both over-temperature and over-current

protection.

The TC1054, TC1055 and TC1186 are stable with an

output capacitor of only 1 µF and have a maximum

output current of 50 mA, 100 mA and 150 mA,

respectively. For higher output current regulators,

please refer to the TC1173 (I

(DS21632).

Package Type

NOTE: 5-Pin SOT-23 is equivalent to the EIAJ (SC-74A)

OUT

5-Pin SOT-23

systems,

TC1054

TC1055

TC1186

GND

OUT

the

ERROR

SHDN

= 300 mA) data sheet

devices’

OUT

DS21350D-page 1

and ERROR

CMOS

Related parts for TC1054-2.8VCT713

TC1054-2.8VCT713 Summary of contents

Page 1

... The devices incorporate both over-temperature and over-current protection. The TC1054, TC1055 and TC1186 are stable with an output capacitor of only 1 µF and have a maximum output current of 50 mA, 100 mA and 150 mA, respectively. For higher output current regulators, please refer to the TC1173 (I (DS21632) ...

Page 2

... Maximum Output Current I OUT Output Voltage V V Temperature Coefficient TCV OUT ΔV Line Regulation OUT ΔV Load Regulation: OUT TC1054; TC1055 TC1186 Dropout Voltage TC1055; TC1186 TC1186 Supply Current Shutdown Supply Current I Power Supply Rejection Ratio PSRR Output Short Circuit Current I OUT Δ ...

Page 3

... Please see Section 5.0 “Thermal Considerations”, “Ther- mal Considerations”, for more details. 7: Hysteresis voltage is referenced The minimum V has to justify the conditions Apply for junction temperatures of -40C to +85C. © 2007 Microchip Technology Inc. TC1054/TC1055/TC1186 = 100 µ OUT L L ...

Page 4

... TC1054/TC1055/TC1186 2.0 TYPICAL PERFORMANCE CURVES 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 5

... μF C OUT 3.276 V = 4.3V IN 3.274 -40 -20 - TEMPERATURE (°C) FIGURE 2-9: V vs. V OUT 150 mA). LOAD © 2007 Microchip Technology Inc. TC1054/TC1055/TC1186 = 100 µ 3.3 µF, SHDN > V OUT L L 3.5 I LOAD 3 2 μ μF C OUT 0 0 FIGURE 2-10: ...

Page 6

... TC1054/TC1055/TC1186 Note: Unless otherwise indicated 4.994 I = 150 mA 4.992 LOAD 4.990 4.988 4.986 4.984 4.982 4.980 4.978 μ 4.976 = 1 μF C OUT 4.974 -40 -20 - TEMPERATURE (°C) FIGURE 2-13: Output Voltage (5V) vs. Temperature ( mA). LOAD LOAD ...

Page 7

... The regulator remains off until die temperature drops to approximately 150°C. FIGURE 2-20: Thermal Shutdown Response of 5.0V LDO. © 2007 Microchip Technology Inc. TC1054/TC1055/TC1186 = 100 µ 3.3 µF, SHDN > V OUT L L ...

Page 8

... TC1054/TC1055/TC1186 3.0 PIN DESCRIPTIONS The descriptions of the pins are listed in TABLE 3-1: PIN FUNCTION TABLE Pin No. Symbol 1 V Unregulated supply input IN 2 GND Ground terminal 3 SHDN Shutdown control input 4 ERROR Out-of-Regulation Flag (Open-drain output Regulated voltage output OUT 3.1 Unregulated Supply Input (V ...

Page 9

... DETAILED DESCRIPTION The TC1054, TC1055 and TC1186 are precision fixed output voltage regulators (If an adjustable version is desired, please see the TC1070/TC1071/TC1187 data sheet (DS21353)). Unlike bipolar regulators, the TC1054, TC1055 and TC1186 supply current does not increase with load current. Figure 4-1 ...

Page 10

... Maximum allowable power dissipation: P dissipation In this example, the TC1054 dissipates a maximum of 20.7 mW; below the allowable limit of 318 mW similar manner, used to calculate maximum current and/or input ) voltage limits. 5.3 Layout Considerations The primary path of heat conduction out of the package is via the package leads. Therefore, layouts having a ground plane, wide traces at the pads and wide power supply bus lines combine to lower θ ...

Page 11

Page 12

... TC1054/TC1055/TC1186 5-Lead Plastic Small Outline Transistor (OT) [SOT-23] Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging Number of Pins Lead Pitch Outside Lead Pitch Overall Height Molded Package Thickness Standoff Overall Width ...

Page 13

... Characteristics”. • Changes to Figure 4-2. • “Packaging Information”: Corrected SOT-23 Packaging Informaton. Revision C (March 2003) • Undocumented changes. Revision B (May 2002) • Undocumented changes. Revision A (March 2002) • Original Release of this Document. © 2007 Microchip Technology Inc. TC1054/TC1055/TC1186 DS21350D-page 13 ...

Page 14

Page 15

... Package: CT713 = 5L SOT-23, Tape and Reel © 2007 Microchip Technology Inc. TC1054/TC1055/TC1186 Examples: XXXXX a) TC1054-1.8VCT713: Package b) TC1054-2.5VCT713: c) TC1054-2.6VCT713: d) TC1054-2.7VCT713: e) TC1054-2.8VCT713: f) TC1054-2.85VCT713: g) TC1054-3.0VCT713: h) TC1054-3.3VCT713: i) TC1054-3.6VCT713: j) TC1054-4.0VCT713: k) TC1054-5.0VCT713: a) TC1055-1.8VCT713: b) TC1055-2.5VCT713: c) TC1055-2 ...

Page 16

Page 17

Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families ...

Page 18

W ORLDWIDE AMERICAS ASIA/PACIFIC Corporate Office Asia Pacific Office 2355 West Chandler Blvd. Suites 3707-14, 37th Floor Chandler, AZ 85224-6199 Tower 6, The Gateway Tel: 480-792-7200 Habour City, Kowloon Fax: 480-792-7277 Hong Kong Technical Support: Tel: 852-2401-1200 http://support.microchip.com Fax: 852-2401-3431 ...

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