ANPEC APL1582UC-TU, APL1582UC-TR, APL1582GC-TU, APL1582FC-TU, APL1582FC-TR Datasheet

APL1582

DUAL INPUT LOW DROPOUT REGULATOR

Features General Description

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450mV typ. Dropout at 3A in dual power

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voltage mode

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Remote Sense Pin Available

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••

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2% Accuracy Over Temperature Range

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••

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Build-in Over Temperature Protection

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••

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Build-in Current Limit

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• 5 Pin TO-220, TO-252 and TO-263 Packages

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• No Supply Sequencing Problems in Dual

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Supply Mode

Applications

• Microprocessor Supplies

•! Chip Set Supplies

• VGA Card Power

• LCD Monitor Power

The APL1582 of high performance positive voltage
regulators are designed for use in applications
requiring very low dropout voltage at 3Amps .
The APL1582 can provide a output voltage at the range
of 1.25V to 2.55V , where both 5V and 3.3V voltage
supplies are available .
The superior dropout characteristics result in reduced
heat dissipation compared to regular LDOs. The
APL1582 also provides excellent regulation over line ,
load , and temperature variations.
Current limit is trimmed to ensure specified output
current and controlled short-circuit current . On-chip
thermal limiting provides protection against any
combination of overload that would create excessive
junction temperature .
The APL1582 is available in both the through-hole
and surface mount versions of the industry standard
5-Pin TO-220, TO-252 and TO-263 power packages .

Ordering and Marking Information

APL1582

Handling Cod e
Temp. Range
Package Cod e

APL1582 F/G/U :

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.

Copyright  ANPEC Electronics Corp.
Rev. A.4 - Apr., 2003

APL1582
XXXXX

Package Code
F : TO-220-5 G : TO-263-5
U : TO-252-5
Temp. Range
C : 0 to 70 C
Handling Code
TU : Tube TR : Tape & Reel

XXXXX - Date Code

°

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APL1582

y

Pin Configuration

5
4
3
2
1

Front View of TO-220-5

Pin Description

PIN

No. Name

1V

SENSE

2ADJ O

3V

4V

OUT

CONTROL

5VINI

I/O Description

I

O

I

V

IN
CONTROL

V
V

OUT

ADJ
V

SENSE

5
4

3
2
1

IN

V

CONTROL

V

OUT

V
ADJ

SENSE

V

Front View of TO-252-5/TO-263-5

Positive side of the reference volt age, which all ows remote sens ing to
obtain excellent load regulat io n.

Negative side of the reference voltage, which allows to use resistor
divider to set an expect output voltage. A small bypass capacitor can be
connected from this pin to ground to improve PSRR performance.

Output pin of the regulator, which connects to t he TAB. A m inimum of
10µF capacitor must be connected from this pin to ground to ensure the
stability.

Suppl
V

pin of the contr ol circuitry, which must be always higher than

OUT

for the device to regulate. (see electrical characteristics)

Power input pin of the regulator, which must be always higher than

OUT

V

for the device to regulate. (see electrical characteristics)

Block Diagram

OUT

IN

V

CONTROL

V

Current

Limit

Thermal

Protection

Copyright  ANPEC Electronics Corp.
Rev. A.4 - Apr., 2003

Voltage

Regulation

V

V

ADJ

SENSE

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APL1582

Absolute Maximum Ratings

Symbol Parameter Rating Unit

IN

V

CONTROL

V

JA

Q

D

P

J

T

STG

T

L

T

Electrical Characteristics

Unless otherwise noted these specifications apply over , CIN=1uF , COUT=10uF , TJ=0 to 125°C. Typical values
refer to TJ=25°C. VOUT=VSENSE.

Input Voltage 7 V
Control Vo ltage 13.2 V
Thermal Resistance – Junction to Ambient 62.5
Po w e r D iss ipa t ion Inte rn a lly L imite d W
Operating Junction Tem perature
Control Section 0 to 125
Power Transistor 0 to 150
Storage Temperature Range -65 to +150
Lead Tem perature (Soldering, 10 second) 260

°C / W

°C

°C
°C

Symbol Parameter Test Conditions

V

REF

REG

LINE

REG

LOAD

V

CONTROL-VOUT

VIN-V

OUT

I

LIMIT

I

LMIN

REG

THERMAL

PSRR

I

CONTROL

I

ADJ

Reference Voltage

Line Regulation

Load Regulation (note 1)

V

5.5V , I
V

5.5V , I
V

3A , V
Dropout Voltage (note 2) VIN=2.05V , IO =3A , V
Dropout Voltage (note 2) V
Current Limit V
Minimum Load Current

(note 3)

V

Thermal Regulation 30mS Pulse 0.01
Power Supply Ripple

Rejection
Control Pin Current

T

V

V

V
Adjust Pin Current V

=2.75 to 12V , VIN=2.05V to

CONTROL

=10mA to 3A , V

O

=2.75V to 12V , VIN=1.75V to

CONTROL

=10mA , V

O

=2.75V , VIN=2.1V , IO =10mA to

CONTROL

CONTROL

CONTROL

CONTROL

J
CONTROL

CONTROL
ADJ

CONTROL

=0V

ADJ

=2.75V , IO =3A , V
=2.75V , VIN=2.05V 3.2 A

=5V , VIN=3.3V , V

=25°C , V

RIPPLE

=5V , VIN=5V , IO=3A , V
=2.75V , VIN=2.05V , IO =3A ,

=0V

=2.75V , VIN=2.05V , V

ADJ

=1VPP at 120Hz,

APL1582

MIN TYP MAX

1.225 1.250 1.275 V

3mV

=0V

ADJ

=0V

5mV

=0V 1.10 1.25 V

ADJ

=0V 0.45 V

ADJ

=0V 5 10 mA

ADJ

ADJ

=0V

60 70 dB

33 120 mA

=0V 50 120

ADJ

UNIT

%/W

µA

Copyright  ANPEC Electronics Corp.
Rev. A.4 - Apr., 2003

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APL1582

Electrical Characteristics Cont.

Note 1 : Low duty cycle pulse test with Kelvin con­nections are required to maintain data accuracy .
Note 2 : Drop-out voltage is defined as the minimum
difference between VIN and VOUT required to maintain
1% VOUT regulation .

Application Circuit

5

IN

3.3V

5.0V

GND

V

APL1582

4

CONTROL

V

ADJ

2

R2

Ω

125

Note 3 : Minimum load current is defined as the mini­mum current required at the output to maintain VOUT
regulation.

3

OUT

V

REF

R1

125

1

Ω

SENSE

V

V

-+

2.5V

GND

∗ VOUT = VREF ( 1+ R2 / R1 ) + IADJ * R2
∗ R1 is typically in range of 100Ω to 125Ω to satisfy the minimum load current requirement

Copyright  ANPEC Electronics Corp.
Rev. A.4 - Apr., 2003

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