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TS39100/1/2/3

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 TS39100/1/2/3 series are 1A ultra low dropout linear voltage regulators that provide low voltage, high current output

from an extremely small package. These regulator offers extremely low dropout (typically 400mV at 1A) and very low

ground current (typically 12mA at 1A).

The TS39100/1/2/3 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 TS39101/2/3, 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 (TS39100), 8-pin SOP (TS39101/2) and 5-pin TO-252 (TS39103) package.

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

Reversed leakage protection

Reverse battery protection

Error flag signals output out of regulation

Internal current limit

Thermal shutdown protection

Ordering Information

Part No.

TS39100CWxx

TS39100CPxx

TS39101CSxx

TS39102CS

TS39103CP5xx

o

-40 ~ +125 C

Operating Temp.

(Junction)

Package

SOT-223

TO-252

SOP-8

TO-252-5L

Note: Where

xx

denotes voltage option, available are

5.0V, 3.3V, 2.5V, 1.8V and 1.5V. Leave blank for

adjustable version (only TS39103). Contact to

factory for addition output voltage option.

Applications

Battery power equipment

LDO linear regulator for PC add-in cards

PowerPC

TM

High efficiency linear power supplies

High efficiency post regulator for switching supply

Low-voltage microcontrollers and digital logic

SMPS post regulator

power supplies

Multimedia and PC processor supplies

Absolute Maximum Rating

(Note 1)

Supply Voltage

Enable Voltage

Storage Temperature Range

Lead Soldering Temperature (260

o

C)

ESD

Vin

Ven

T

STG

-20V ~ +20

+20

-65 ~ +150

5

(Note 3)

V

o

C

S

TS39100/1/2/3

1-10

2004/06 rev. E

Operating Rating

(Note 2)

Operation Input Voltage

Operation Enable Voltage

Power Dissipation (Note 4)

Operating Junction Temperature Range

Vin (operate)

Ven (operate)

P

D

T

J

+2.25 ~ +16

Internally Limited

-40 ~ +125

V

W

o

C

Electrical Characteristics

Vin = Vout + 1V, Venable= 2.25V, Tj = 25

o

C, unless otherwise specified.

Parameter

Output Voltage

Line Regulation

Load Regulation

Output Voltage Temp. Coefficient

Dropout Voltage (Note 5)

Conditions

I

L

=10mA

10mA

≤

I

L

≤

1.0A,

Vo+1V

≤

Vin

≤

8V

I

L

=10mA, Vo+1V

≤Vin≤

16V

Vin=Vout+1V, 10mA≤I

L

≤1A

∆Vout=

-1%

I

L

=100mA

I

L

=500mA

I

L

=750mA

I

L

=1.0A

Min

0.990|Vo|

0.980|Vo|

--

Typ

Vout

Max

1.010|Vo|

1.020|Vo|

Unit

V

%

ppm/

o

C

mV

0.05

0.2

40

100

275

350

400

0.7

4.0

7.0

12.0

1.8

0.5

1.0

100

250

500

630

--

20

2.5

Quiescent Current (Note 6)

Vin=V

out

+1V

I

L

=100mA

I

L

=500mA

I

L

=750mA

I

L

=1.0A

mA

Current Limited

Vout=0, Vin=Vout+1V

A

Reference (TS39102)

Reference Voltage

Adjust Pin Bias Current

Reference Voltage Temp. Coefficient

Adjust Pin Bias Current Temp.

Coefficient

(Note 8)

(Note 7)

0.980|Vo|

0.970|Vo|

--

40

20

0.1

1.24

1.020|Vo|

1.030|Vo|

120

--

V

nA

ppm/

o

C

nA/

o

C

Flag Output (TS39101)

Output Leakage Current

Output Low Voltage (Note 9)

Upper Threshold Voltage

Lower Threshold Voltage

Hysteresis

V

OH

=16V

Vin=0.9 * Vout, I

OL

=250uA

% of Vout

--

93

--

1

2

400

99

--

uA

mV

%

Enable Input (TS39101 / 2 / 3)

Input Logic Voltage

Enable Pin Input Current

Low (OFF)

High (ON)

Ven=2.25V

Ven=0.8V

--

2.25

--

0.8

--

75

4

uA

V

TS39100/1/2/3

2-10

2004/06 rev. E

Thermal Performance

Condition

Thermal Resistance

Junction to Ambient

Package type

SOT-223

SOP-8

TO-252

Typ

15

20

25

Unit

o

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: The device is not guaranteed to operate outside its operating rating.

Note 3: Devices are ESD sensitive. Handling precautions recommended.

Note 4: 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, Pd

(max)

= (Tj

(max)

– Ta) /

Θja.

Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops -1% below its

nominal value measured at 1V differential.

Note 6: 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, Iin = Ignd + Iout.

Note 7: Vref

≤

Vout

≤

(Vin – 1V), 2.25V

≤

Vin

≤

16V, 10mA

≤

I

L

≤

1.0A.

Note 8: Output voltage temperature coefficient is

∆Vout

(worse cast) / (Tj

(max)

- Tj

(min)

) where is Tj

(max)

+125

o

C and

Tj

(min)

is 0

o

C.

Note 9: For adjustable device and fiexed device with Vout > 2.25V.

Block Diagram

TS39100

TS39100/1/2/3

3-10

2004/06 rev. E

Block Diagram

TS39101 & TS39102 & TS39103

* Feedback network is fixed output versions only (TS39101CSxx & TS39103CP5xx )

** Adjustable output version only (TS39102CS & TS39103CP5)

TS39100/1/2/3

4-10

2004/06 rev. E

Pin Assignment

Pin No.

TS39100

TS39101

1

TS39102

1

TS39103

1

Pin Configuration

Description

Enable (input): TTL/COMS compatible

input. Logic high is enable; logic low or

open is shutdown

Unregulated input: +26V maximum

supply

Ground: Ground pin and TAB/heatsink

are internally connected.

Regulator output

Error Flag (output): Open-collector

output. Active low indicates an output

fault condition, if no used, leave open.

Adjustment input: Feedback input.

Connect to resistive voltage-divider

network.

Enable

1

2

3

2

5,6,7,8

3

4

2

5,6,7,8

3

2

3

4

Input

Ground

Output

Flag

(fixed output voltage)

5

4

Feed Back

(adjustable voltage)

Typical Application Circuit

TS39100/1/2/3

5-10

2004/06 rev. E

TS39101CS1.5

TS39101CS1.5概述

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