TS29102CS12 datasheet, PDF - EEWORLD Datasheet

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TS29102CS12: Description1.0A Ultra Low Dropout Positive Voltage Regulator; CategoryPower/power management The power supply circuit; File Size177KB，8 Pages; ManufacturerTaiwan Semiconductor; Websitehttp://www.taiwansemi.com/

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TS29102CS12 Overview

1.0A Ultra Low Dropout Positive Voltage Regulator

TS29102CS12 Parametric

Parameter Name	Attribute value
Maker	Taiwan Semiconductor
package instruction	,
Reach Compliance Code	compli
Base Number Matches	1

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TS29100/1/2

1.0A Ultra Low Dropout Positive Voltage Regulator

Low Dropout Voltage 0.4V typ.

Enable Input Control

Adjustable Output

Error Flag Detection

General Description

The TS29100/1/2 series are using process with a PNP pass element for high current, high accuracy and low dropout

voltage regulators. These regulator s feature 400mV(typ) dropout voltages and very low ground current, these devices

also find applications in lower current and low dropout critical systems, where their tiny dropout voltage and ground

current values are important attributes.

The TS29100/1/2 series are fully protected against over current faults, reversed input polarity, reversed lead insertion,

over temperature operation, positive and negative transient voltage spikes, logic level enable control and error flag which

signals whenever the output falls out of regulation.

On the TS29101 and TS29102, the enable pin may be tied to Vin if it is not required for enable control. This series are

offered in 3-pin SOT-223 and 8-pin SOP pacakge.

Features

Dropout voltage typically 0.4V @Io=1.0A

Output current up to 1.0A

Low ground current

Output voltage trimmed before assembly

Extremely fast transient response

+60V Transient peak voltage

-20V Reverse peak voltage

Zero current shutdown mode

Error flag signals output out of regulation

Internal current limit

Thermal shutdown protection

Ordering Information

Part No.

TS29100CWxx

TS29101CSxx

TS29102CSxx

TS29102CS

Note: Where

denotes voltage option, available are

12V, 5.0V, 3.3V and 2.5V. Leave blank for

adjustable version. Contact factory for additional

voltage options.

-40 ~ +125

SOP-8

Operating Temp.

(Junction)

Package

SOT-223

Applications

Battery power equipment

Automotive electronics

High efficiency “Green” computer system

High efficiency linear power supplies

High efficiency post regulator for switching supply

Absolute Maximum Rating

(Note 1)

Input Supply Voltage (Note 2)

Operation Input Voltage

Power Dissipation (Note 3)

Operating Junction Temperature Range

Storage Temperature Range

Lead Soldering Temperature (260

Vin

Vin (operate)

STG

-20V ~ +60

Internally Limited

-40 ~ +125

-65 ~ +150

TS29100/1/2

1-1

2003/12 rev. A

Thermal Performance

Condition

Thermal Resistance

Junction to Ambient

Package type

SOT-223

SOP-8

Typ

Unit

C/W

Note 1: Absolute Maximum Rating is limits beyond which damage to the device may occur. For guaranteed

specifications and test conditions see the Electrical Characteristics.

Note 2: Maximum positive supply voltage of 60V must be limited duration (<100mS) and duty cycle (<1%).

Note 3: The maximum allowable power dissipation is a function of the maximum junction temperature, Tj, the junction to

ambient thermal resistance,

θja,

and the ambient temperature, Ta. Exceeding the maximum allowable power

dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. The effective

value of

θja

can be reduced by using a heatsink.

Note 4: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its

nominal value measured at 1V differential.

Note 5: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the

ground pin current and output load current.

Note 6: Output current will decrease with increasing temperature, but it will be not dropped below 1.0A at the maximum

specified temperature.

Note 7: Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is

applied, excluding load or line regulation effects. Specification are for a 200mA load pulse at Vin=20V (a 4W

pulse) for T=10mS

Note 8: Comparator thresholds are expressed in terms of a voltage differential at the adjust terminal below the nominal

reference voltage measured at 6V input. To express these thresholds in terms of output voltage change,

multiply by the error amplifier gain = Vout / Vref = (R1+R2) / R2. For example, at a programmed output voltage

of 5V, the error output is guaranteed to go low when the output drops by 95mV x 5V / 1.24V = 384mV.

Thresholds remain constant as a percent of Vout as Vout is varied, with the dropout warning occurring at

typically 5% below nominal, 7.7% guaranteed.

TS29100/1/2

3-3

2003/12 rev. A

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