ANPEC APL5332-U5C-TRL, APL5332-KC-TRL, APL5332-KC-TR, APL5332-KAC-TRL, APL5332-KAC-TR Datasheet

CMOS LDO with Source-Sink & Output Selection Functions

Copyright  ANPEC Electronics Corp. Rev. A.3 - Oct., 2003

APL5332

www.anpec.com.tw1

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.

Features General Description

The APL5332 is a precise CMOS LDO with source sink and output selection functions. The APL5332 offers 2% output accuracy. The APL5332 integrates with two power mosfets to source and sink current as well as current and thermal limit into a single chip. The output voltage can be 1.225V or 1.45V by BS pin selection, and also can be adjusted by an external resistor divider connected to FB pin. The APL5332 also works with low-ESR output capacitors, reducing the amount of board space necessary for power applications. The APL5332 key features include current-limit, thermal shutdown, and fast transient response. A compact package TO-252-5 for power consumption purpose, and SOP-8 and SOP-8-P for space saving purpose.

Applications

• Desktop computers

••

• LDO with Source and Sink capabilities

••

• Single Input Voltage

••

• Input Voltage Range from 2.5V to 5.0V

••

• Use One Pin to Select Fixed Output Voltage

••

• Use One Pin to Choose Output Voltage by

External Resistors

••

• Output Voltage Accuracy : ±2%

••

• Current Limit Protection

••

• Thermal Shutdown Protection

••

• Fast Transient Response

••

• Stability with low-ESR capacitors

••

• TO-252-5, SOP-8 and SOP-8-P Packages

Pin Configuration

SO-8 (Top View)

1 2 3 45

6

7

8

VIN

BS

FB

VOUT GND

GND

TO-252-5 (Top View)

VOUT FB

GND

BS

VIN

12345

TAB is GND

1

2

3

45

6

7

8

VIN

BS

FB

VOUT

NC

GND

NC

SOP-8-P (Top View)

NC = No internal connection

= Thermal Pad

(connected to GND plane for better heat dissipation)

Copyright  ANPEC Electronics Corp. Rev. A.3 - Oct., 2003

APL5332

www.anpec.com.tw2

Package Code U5 : TO-252-5 K : SO -8 KA : SOP-8-P Temp. Range

C : 0 to 70 C

Handling Code

TR : Tape & Reel Lead Free Code L : Lead Free Device Blank : Orginal Device

APL5332

Handling Code Temp. Range Package Code

APL5332 XXXXX

APL5332 K /KA :

XXXXX - Date Code

APL5332 XXXXX

APL5332 U :

XXXXX - Date Code

Lead Free Code

Ordering and Marking Information

°

Pin Function Description

No. Name

I/O Description

1 VIN I Input supply voltage. 2 BS I Fixed output voltage selection by this pin. 3 GND O Ground pin for signal ground and power ground. 4 FB I Adjust output voltage by this pin 5 VOUT O Regulator output voltage.

Block Diagram

C ontrol

Cir cuit

Curren t

Limit

Thermal

Contr ol

VIN

VOUT

FB

BS

GND

Copyright  ANPEC Electronics Corp. Rev. A.3 - Oct., 2003

APL5332

www.anpec.com.tw3

Symbol Parameter Rating Unit

VIN VIN Supply Voltage, VIN to GND -0.2 ~ 5.5 V

B S , F B to GN D -0.2 ~ VIN V

V

OUT

V OU T Ou t p u t Vo lta ge , VOU T to GN D -0 .2 ~ VIN V

PD Power Dissipation Internally Limited W

TJ Junction Temperature 150

o

C

T

STG

Storage Tem perature -65 ~ 150

o

C

T

SDR

S oldering Temperature, 10 Seconds 300

o

C

V

ESD

M inim um ES D R ating (Hum an Body Mode)

±

3

kV



Absolute Maximum Ratings

Thermal Characteristics



Symbol Parameter Value Unit

θ

JA

Junction-to-Ambient Thermal Resistance in Free Air

TO-252-5

SOP-8-P

SOP-8

80 80

150

o

C/W



Recommended Operating Conditions

Symbol Parameter Range Unit

VIN VIN Supply V oltage 2.4 ~ 3.5 V

I

OUT

VOUT Output Current (Note 1,2) -1 ~ +2 A

TJ Junction Temperature 0 ~ 125

o

C



Note 1 : The symbol “+” means the VOUT sources current to load; the symbol “-“ means the VOUT sinks current to GND. Note 2 : The max. IOUT varies with the TJ. Please refer to the typical characteristics.

Copyright  ANPEC Electronics Corp. Rev. A.3 - Oct., 2003

APL5332

www.anpec.com.tw4

Electrical Characteristics

Refer to the typical application circuit. These specifications apply over VIN=2.5~3.3V, and TJ= 0 to 125oC, unless otherwise specified. Typical values refer to TJ =25oC.

APL5332



Symbol

Parameter Test Conditions

Min Typ Max

Unit

OUTPUT VOLTAGE

V

REF

Reference Voltage FB=VO U T

0.8

V

BS=VIN , FB=VIN

1.225

V

OUT

VOU T O utput Voltage

BS=GND, FB=VIN

1.45

V

I

OUT

=0A, TJ=25oC -1 +1

Accuracy

I

OUT

= -1~+2A, TJ=0~125oC -2 +2

%

I

OUT

=0A~+2A

VIN=2.5V V

IN

=3.3V

0.5 1

Load Regulation

I

OUT

= 0~-1A

V

IN

=2.5V or 3.3V

0.7

%

Line Regulation I

OUT

=0A, VIN=2.5V ~ 3.3V

0.05

0.2 %

PROTECT ION

2.0

2.3

Sourcing Current TJ=25oC (VIN=3.3V) TJ=125oC

1.7

1.2

1.7

Sinking Current TJ=25oC (V

IN

=2.5V or 3.3V) TJ=125oC

1.3

A

1.7

2.0

I

LIM

Current Limit

Sourcing Current T

J

=25oC

(VIN=2.5V) TJ=125oC

1.5

A

TSD

Thermal Shutdown Tem perature Rising T

J

150

o

C

Thermal Shutdown Hysteresis 25

oC

BS AND FB THRESHOLD VOLTAGES

BSLogicHigh Threshold Voltage VBS Rising 0.6

0.8

1.0 V

BS Hysteresis

35

mV

BS Input Bias Current VIN=3 .3 V , BS= GN D -0 .1 7 -0.3

µA

FB Logic High Threshold Voltage (VFB - V

IN)

V

FB

Rising -0.3 -0.46 -0.8 V

FB Hysteresis

35

mV

FB Input Bias Current V

IN

=3 .3 V , FB= 0 .8 V

-0.17

-0.3

µ

A

OTHER

IQ

Quiescent VIN Sup ply Current I

OUT

=0A 4

8

14 mA

V

POR

VIN Power-On-Reset Threshold Voltage

1.4 2.1 2.4 V

TSS

So f t-S ta r t In te rv a l

1

mS



Copyright  ANPEC Electronics Corp. Rev. A.3 - Oct., 2003

APL5332

www.anpec.com.tw5

Typical Application Circuit

Typical Application For Processor MCH Power Selection Schematic

Use External Resistors to Select the Desired Output Voltage Schematic

VOUT

V

OUT

A PL5332

FB

GND

BS

VIN

5 4

3 2

1

BS=H, V

OUT

=1.225V

BS=L, V

OUT

=1.45V

BS

U1

+3.3V or +2.5V

V

IN

C1

47uF

C2

470uF

C3

1uF

VOUT

V

OUT

A PL5332

FB

GND

BS

VIN

5 4

3 2

1

BS(Inv)=H, V

OUT

=1.45V

BS(Inv)=L, V

OUT

=1.225V

BS(Inv)

+5V

R4

10K

Q1

A PM2300A

R3

3.02K

R2

1.6K

R1

850

U1

+3.3V or +2.5V

V

IN

C1

47uF

C2

470uF

C3

1uF

Copyright  ANPEC Electronics Corp. Rev. A.3 - Oct., 2003

APL5332

www.anpec.com.tw6

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

-50 -25 0 25 50 75 100 125

1.0

1.5

2.0

2.5

3.0

3.5

-50 -25 0 25 50 75 100 125

0.784

0.788

0.792

0.796

0.800

0.804

0.808

0.812

0.816

-50 -25 0 25 50 75 100 125

1.4

1.5

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

-50-25 0 255075100125

Typical Operating Characteristics

Power-On-Reset Threshold Voltage

vs Junction T emperature

Junction T emperature (oC)

Power-On-Reset Threshold Voltage (V)

VREF Shutdown Threshold

vs Junction T emperature

Junction T emperature (oC)

Reference Voltage, VREF (V)

Sourcing Current-Limit

vs Junction T emperature

Current-Limit, ILIM (A)

Junction T emperature (oC)

Sinking Current-Limit

vs Junction T emperature

Current-Limit, ILIM (A)

Junction T emperature (oC)

VIN = 2.5V or 3.3V

VIN = 3.3V

VIN = 2.5V