TC2055-2.8VCTTR Microchip Technology, TC2055-2.8VCTTR Datasheet

TC2055-2.8VCTTR

Manufacturer Part Number

TC2055-2.8VCTTR

Description

100MA LDO WITH SHUTDOWN & /ERROR OUTPUT, TC1055 UPGRADE,

Manufacturer

Microchip Technology

Datasheet

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

Specifications of TC2055-2.8VCTTR

Rohs Compliant

YES

Regulator Topology

Positive Fixed

Voltage - Output

2.8V

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

2.8 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

Details

Other names

TC20552.8VCTTR

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

TC2055-2.8VCTTR

Manufacturer:

MICROCHIP/微芯

Quantity:

20 000

Current page: 1 of 22
Download datasheet (421Kb)

Features

• Low Supply Current (55 µA Typical) for Longer

• Low Dropout Voltage: 140 mV (Typical) @

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

• Standard or Custom Output Voltages

• Power-Saving Shutdown Mode

• ERROR Output Can Be Used as a Low Battery

• Fast Shutdown Reponse Time: 60 µs (Typical)

• Overcurrent and Overtemperature Protection

• Space-Saving 5-Pin SOT-23A Package

• Pin Compatible Upgrades for Bipolar Regulators

• Standard Output Voltage Options:

Applications

• Battery Operated Systems

• Portable Computers

• Medical Instruments

• Instrumentation

• Cellular / GSMS / PHS Phones

• Pagers

Typical Application

(from Power Control Logic)

Battery Life

150 mA

Detector or Processor Reset Generator

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

Shutdown Control

3.3V, 5.0V

1 µF

50 mA, 100 mA, and 150 mA CMOS LDOs

GND

SHDN

TC2054

TC2055

TC2186

with Shutdown and Error Output

ERROR

OUT

TC2054/2055/2186

1 µF

ERROR

OUT

General Description

The TC2054, TC2055 and TC2186 are high accuracy

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

low dropout regulators. Designed specifically for

battery-operated systems, the devices’ total supply

current is typically 55 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 45 mV (TC2054); 90 mV

(TC2055); and 140 mV (TC2186) at full load - and fast

response to step changes in load. An error output

(ERROR)

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

excessive output current). Supply current is reduced to

0.5 µA (maximum) and both V

disabled when the shutdown input is low. The devices

also incorporate overcurrent and overtemperature

protection.

The TC2054, TC2055 and TC2186 are stable with a

low esr ceramic output capacitor of 1 µF and have a

maximum output current of 50 mA, 100 mA and

150 mA, respectively. This LDO Family also features a

fast response time (60 µs typically) when released from

shutdown.

Package Type

OUT

asserted

5-Pin SOT-23A

GND

Top View

ERROR

SHDN

when

OUT

TC2054

TC2055

TC2186

the

and ERROR are

DS21663D-page 1

devices

are

Related parts for TC2055-2.8VCTTR

TC2055-2.8VCTTR Summary of contents

Page 1

... The devices’ key features include low noise operation, low dropout voltage – typically 45 mV (TC2054 (TC2055); and 140 mV (TC2186) at full load - and fast response to step changes in load. An error output (ERROR) out-of-regulation (due to a low input voltage or excessive output current). Supply current is reduced to 0.5 µ ...

Page 2

Page 3

... × 10 ΔT , θ (output voltage setting), after +25° Conditions Note 1 TC2054 TC2055 TC2186 Note 1V) < V < TC2054;TC2055 OUT MAX L TC2186 OUT MAX L Note 100 µ TC2015; TC2185 I = 100 mA L TC2185 I = 150 mA L Note 7 SHDN = SHDN = 0V ≤ 100 kHz F ...

Page 4

... IN OUT I = 0.1 mA, Note 2. 2. Flows to ERROR mA See Figure 4-2 Note 10 V from 2.8V OUT 2.5V 2.5V DD OUT . DROPOUT for ms. MAX IN is switched from SHDN IN Units Conditions °C °C °C — °C/W © 2009 Microchip Technology Inc. ...

Page 5

... FIGURE 2-2: Power Supply Rejection Ratio µF OUT 0.1 0.01 0.001 0.01 0 Frequency (kHz) FIGURE 2-3: Output Noise vs. Frequency. © 2009 Microchip Technology Inc. TC2054/2055/2186 = 100 µ 3.3 µF, SHDN > OUT 100 µA V OUT INDC V INAC -20 V OUTDC ...

Page 6

... LOAD Output Voltage vs. Output Temp = +130˚C Temp = +25˚C Temp = -45˚C 4 4.5 5 5.5 6 6.5 V (V) IN Output Voltage vs. Supply Temp = +130˚C Temp = -45˚C Temp = +25˚C 3.7 4.2 4.7 5.2 5.7 6.2 6.7 V (V) IN Dropout Voltage vs. Supply © 2009 Microchip Technology Inc. 7 ...

Page 7

... FIGURE 2-14: Load Transient Response in Dropout Mode. V OUT C OUT C BYP I OUT 50mV / DIV Input Voltage 2V / DIV FIGURE 2-15: Line Transient Response. © 2009 Microchip Technology Inc. TC2054/2055/2186 = 100 µ 3.3 µF, SHDN > OUT V OUT 150mA Load 100μA FIGURE 2-16: V ...

Page 8

... TC2054/2055/2186 Note: Unless otherwise indicated 100kΩ PULLUP I = 0.3mA OUT V 1V/Div IN 2.8V 1V/Div V OUT 2.8V 2V/Div V ERROR 0V FIGURE 2-19 ERROR Delay. OUT DS21663D-page 1V 100 µ 3.3 µF, SHDN > OUT 3.42V 3. +25° © 2009 Microchip Technology Inc. ...

Page 9

... The regulator is fully enabled when a logic-high is applied to SHDN. The regulator enters shutdown when a logic-low is applied to this input. During shutdown, the output voltage falls to zero and the supply current is reduced to 0.5 µA (maximum). © 2009 Microchip Technology Inc. TC2054/2055/2186 Table 3-1. Description ) 3 ...

Page 10

Page 11

... DETAILED DESCRIPTION The TC2054, TC2055 and TC2186 are precision fixed output voltage regulators. (If an adjustable version is desired, refer to the TC1070/TC1071/TC1187 data sheet (DS21353). Unlike bipolar regulators, the TC2054, TC2055 and TC2186 supply current does not increase with load current. In addition, V stable and within regulation over the entire maximum output current operating load range ...

Page 12

Page 13

... FR4 dielectric copper clad PC board. EQUATION 5-2: T – T JMAX AMAX P = -------------------------------------- - θ DMAX JA Where all terms are previously defined. © 2009 Microchip Technology Inc. TC2054/2055/2186 Equation 5-1 Equation 5-2 to ensure regulator thermal operation is within limits. For example: Given: V INMAX V OUTMIN I LOADMAX T ...

Page 14

Page 15

... Component Taping Orientation for 5-Pin SOT-23A (EIAJ SC-74A) Devices Device Marking PIN 1 Carrier Tape, Number of Components Per Reel and Reel Size: Package Carrier Width (W) 5-Pin SOT-23A 8 mm © 2009 Microchip Technology Inc. TC2054/2055/2186 PART NUMBER CODE AND TEMPERATURE RANGE TC2054 TC2055 TC2186 ...

Page 16

Page 17

... Added Temperature Characteristics Table. 4. Added Section 5.1 “Thermal Shutdown”. 5. Updated the package outline drawing. Revision B (May 2002) • Data Sheet converted to Microchip standards. Revision A (May 2001) • Original Release of this Document under Telcom. © 2009 Microchip Technology Inc. TC2054/2055/2186 Table 6-1 in DS21663D-page 13 ...

Page 18

Page 19

... Package b) TC2054-2.85VCTTR: 5LD SOT-23-A, 2.85V, c) TC2054-3.3VCTTR: 5LD SOT-23-A, 3.3V, a) TC2055-1.8VCTTR: 5LD SOT-23-A, 1.8V, b) TC2055-2.85VCTTR: 5LD SOT-23-A, 2.85V, c) TC2055-3.0VCTTR: 5LD SOT-23-A, 3.0V, a) TC2186-1.8VCTTR: 5LD SOT-23-A, 1.8V, b) TC2186-2.8VCTTR: 5LD SOT-23-A, 2.8V, . Tape and Reel. Tape and Reel. Tape and Reel. Tape and Reel. ...

Page 20

Page 21

... REAL ICE, rfLAB, Select Mode, Total Endurance, TSHARC, UniWinDriver, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 22

... Fax: 886-3-6578-370 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2009 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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