TC2055-2.85VCTTR Microchip Technology, TC2055-2.85VCTTR Datasheet

TC2055-2.85VCTTR

Manufacturer Part Number

TC2055-2.85VCTTR

Description

IC CMOS LDO 2.85V 100MA SOT23A-5

Manufacturer

Microchip Technology

Datasheets

1.TC2054-5.0VCTTR.pdf (22 pages)

2.TC2054-3.3VCTTR.pdf (16 pages)

Specifications of TC2055-2.85VCTTR

Regulator Topology

Positive Fixed

Voltage - Output

2.85V

Voltage - Input

Up to 6V

Voltage - Dropout (typical)

0.09V @ 100mA

Number Of Regulators

Current - Output

100mA (Min)

Operating Temperature

-40°C ~ 125°C

Mounting Type

Surface Mount

Package / Case

SOT-23-5, SC-74A, SOT-25

Number Of Outputs

Polarity

Positive

Input Voltage Max

6 V

Output Voltage

2.85 V

Output Type

Fixed

Dropout Voltage (max)

140 mV

Output Current

100 mA

Line Regulation

0.05 %

Load Regulation

0.5 %

Voltage Regulation Accuracy

0.4 %

Maximum Operating Temperature

+ 125 C

Mounting Style

SMD/SMT

Minimum Operating Temperature

- 40 C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current - Limit (min)

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Other names

TC20552.85VCTTR

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

TC2055-2.85VCTTR

Manufacturer:

MICROCHIP

Quantity:

12 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

TC2055-2.85VCTTR

Manufacturer:

MICROCHIP/微芯

Quantity:

20 000

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Features

• Very Low Supply Current (55µA Typ.) for Longer

• Very Low Dropout Voltage: 140mV (Typ.) @

• High Output Voltage Accuracy: ±0.4% (Typ)

• Standard or Custom Output Voltages

• Power-Saving Shutdown Mode

• ERROR Output Can Be Used as a Low Battery

• Fast Shutdown Reponse Time: 60µsec (Typ)

• Over-Current Protection

• Space-Saving 5-Pin SOT-23A Package

• Pin Compatible Upgrades for Bipolar Regulators

Applications

• Battery Operated Systems

• Portable Computers

• Medical Instruments

• Instrumentation

• Cellular / GSMS / PHS Phones

• Pagers

Device Selection Table

Package Type

TC2054-xxVCT

TC2055-xxVCT

TC2186-xxVCT

Battery Life

150mA

Detector or Processor Reset Generator

Note:

2002 Microchip Technology Inc.

Part Number

*5-Pin SOT-23A is equivalent to EIAJ (SC-74A).

OUT

GND

5-Pin SOT-23A*

50mA, 100mA, and 150mA CMOS LDOs

Package

ERROR

SHDN

with Shutdown and Error Output

5-Pin SOT-23A*

TOP VIEW

TC2054

TC2055

TC2186

Junction Temp.

-40°C to +125°C

TC2054/2055/2186

Range

General Description

The TC2054, TC2055 and TC2186 are high accuracy

(typically ±0.4%) CMOS upgrades for older (bipolar)

low dropout regulators. Designed specifically for bat-

tery-operated systems, the devices’ total supply current

is typically 55µA at full load (20 to 60 times lower than

in bipolar regulators).

The devices’ key features include ultra low noise oper-

ation,

(TC2054); 90mV (TC2055); and 140mV (TC2186) 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 exces-

sive output current). Supply current is reduced to 0.5µA

(max) and both V

the shutdown input is low. The devices also incorporate

over-current protection.

The TC2054, TC2055 and TC2186 are stable with a

low esr ceramic output capacitor of 1µF and have a

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

respectively. This LDO Family also features a fast

response time (60µsec typically) when released from

shutdown.

Typical Application

(from Power Control Logic)

Shutdown Control

very low dropout voltage - typically 45mV

1µF

OUT

GND

SHDN

and ERROR are disabled when

TC2054

TC2055

TC2186

ERROR

OUT

DS21663B-page 1

1µF

ERROR

OUT

Related parts for TC2055-2.85VCTTR

TC2055-2.85VCTTR Summary of contents

Page 1

... V the shutdown input is low. The devices also incorporate over-current protection. The TC2054, TC2055 and TC2186 are stable with a low esr ceramic output capacitor of 1µF and have a maximum output current of 50mA, 100mA and 150mA, respectively. This LDO Family also features a fast response time (60µ ...

Page 2

... × , θ (output voltage setting), after V R SHDN Test Conditions Note 1 TC2054 TC2055 TC2186 Note 1V) < V < TC2054;TC2055 I = 0.1mA to I OUT MAX L TC2186 I = 0.1mA to I OUT MAX L Note 100µ 50mA L TC2015; TC2185 I = 100mA L TC2185 I = 150mA L Note 5 SHDN = ...

Page 3

... The descriptions of the pins are listed in Table 2-1. TABLE 2-1: PIN FUNCTION TABLE Pin Number Symbol GND 3 SHDN 4 ERROR 5 V OUT 2002 Microchip Technology Inc. © TC2054/2055/2186 = 100µ 3.3µF, SHDN > 25°C, unless otherwise noted. BOLDFACE Min Typ Max Units 60 — ...

Page 4

... TC2054/2055/2186 3.0 DETAILED DESCRIPTION The TC2054, TC2055 and TC2186 are precision fixed output voltage regulators. (If an adjustable version is desired, please see the TC1070, TC1071 or TC1187 data sheets.) Unlike bipolar regulators, the TC2054, TC2055 and TC2186 supply current does not increase with load current. In addition, V ...

Page 5

... EQUATION 4-2: T – ---------------------------------- - θ Where all terms are previously defined 2002 Microchip Technology Inc. © TC2054/2055/2186 Equation 4-1 can be used in conjunction with Equation 4-2 to ensure regulator thermal operation is within lim- its. For example: Given MAX V OUT MIN I LOAD MAX T A MAX Find 1 ...

Page 6

... Ceramic p-p OUT 100 1k 10k 100k 1M f (Hz) POWER SUPPLY REJECTION RATIO I = 150mA OUT C = 10µF Tantalum p-p OUT 100 1k 10k 100k 1M f (Hz) DROPOUT VOLTAGE VS. I LOAD T = 25˚ 130˚ -45˚C 50 100 150 I (mA) LOAD 2002 Microchip Technology Inc. © ...

Page 7

... V = 2.8V IN 1.76 1.74 1.72 1.7 -50 -35 - Temperature (˚C) 2002 Microchip Technology Inc. © TC2054/2055/2186 FIGURE 5-10: OUTPUT VOLTAGE VS. OUTPUT 1.9 1.88 1.86 1.84 1.82 1.8 1.78 1.76 1.74 1.72 1.7 105 155 0 15 FIGURE 5-11: OUTPUT VOLTAGE VS. SUPPLY 2 ...

Page 8

... Frequency = 10KHz 100mV / DIV V OUT Load Current 150mA Load 100µ 4. 3.0V OUT C = 10µF OUT C = 0.01µF BYP I = 100µA OUT V SHDN V OUT V SHDN V OUT = 4. 3.0V OUT = 10µF OUT = 0.01µF BYP = 100µA OUT 2002 Microchip Technology Inc. © ...

Page 9

... TYPICAL CHARACTERISTICS (CONT) FIGURE 5-19 ERROR DELAY OUT R = 100kΩ PULLUP I = 0.3mA OUT V 1V/Div IN 2.8V 1V/Div V OUT 2.8V 2V/Div V ERROR 0V 2002 Microchip Technology Inc. © TC2054/2055/2186 3.42V 3.0V DS21663B-page 9 ...

Page 10

... TC2054/2055/2186 6.0 PACKAGING INFORMATION 6.1 Package Marking Information 5-Pin SOT-23A 1 & part number code + temperature range and volt- age TC2054 TC2055 (V) Code Code represents year and 2-month period code 4 represents lot ID number 6.2 Taping Information Component Taping Orientation for 5-Pin SOT-23A (EIAJ SC-74A) Devices ...

Page 11

... Package Dimensions SOT-23A-5 .122 (3.10) .098 (2.50) .020 (0.50) .012 (0.30) PIN 1 .057 (1.45) .035 (0.90) .006 (0.15) .000 (0.00) 2002 Microchip Technology Inc. © TC2054/2055/2186 .075 (1.90) REF. .071 (1.80) .059 (1.50) .037 (0.95) REF. .122 (3.10) .106 (2.70) 10° MAX. ...

Page 12

Page 13

... 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. TC2054/2055/2186 DS21663B-page 13 ...

Page 14

... TC2054/2055/2186 NOTES: DS21663B-page 14  2002 Microchip Technology Inc. ...

Page 15

... Serialized Quick Turn Programming (SQTP service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2002, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system ...

Page 16

... Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea 135-882 Tel: 82-2-554-7200 Fax: 82-2-558-5934 Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-6334-8870 Fax: 65-6334-8850 Taiwan Microchip Technology Taiwan 11F-3, No. 207 ...

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