ANPEC APL5158-12BC-TRL, APL5158-12BC-TR Datasheet

APL5158

150mA CMOS Low Dropout Regulator With Power OK

Features General Description

••

• Ultra low ground current : 60µA

••

••

• Low Dropout Voltage Regulator, 1.5V

••

••

• 150mA Load Current Capability

••

••

• Output Voltage Accuracy : ±2% Over Temp.

••

••

• Input Voltage Range of 2.7V to 6.0V

••

••

• Power Good (POK) Function

••

••

• Current Limit Protection

••

••

• Thermal Shutdown Protection

••

••

• Fast Transient Response

••

••

• Stability with low-ESR capacitors

••

••

• TTL Logic controlled enable input

••

••

• SOT-23-5 Package

••

Applications

• Processor power up sequencing

• Laptop,notebook, and palmtop computers

The APL5158 is a precise CMOS LDO with power ok

function. The APL5158 offers 2% output accuracy

over temp, and an ultra low ground current 60µA.

The power good function monitors the output voltage

and indicates when an error occurs in the system

(active low).In the event of an output fault such as

over current, thermal shutdown, the power ok output

is pulled low. The APL5158 also works with low-ESR

output capacitors, reducing the amount of board space

for power applications, critical in hand-held wireless

devices. Key features include current-limit, thermal

shutdown, fast transient response. A compact pack-

age SOT-23-5 is available for space saving purpose.

Pin Configuration

V

GND

EN

IN

1

2

3

5

4

OUT

V

POK

• Wireless LAN

SOT-23-5

Ordering and Marking Information

APL5158 -

Lead Free Code

Hand ling Code

Tem p. Ran ge

Package Code

Voltage C ode

185X

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 - Aug., 2003

Package Code

B : S O T -2 3-5

Tem p. Ran ge

C : 0 to 7 0 C

Hand ling Code

TR : Tape & Reel
Voltage C ode :
1 2 : 1.2V
Lead Free Code
L : Le a d F re e D ev ice
B lan k : O rg ina l D ev ice

5 - 1 .2V
X - D ate C o de

°

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APL5158

Pin Description

PIN

No. Name

I/O Description

1 VIN I Input supply voltage.
2 GND Ground pin for signal ground and power ground.
3 EN I Enable/shutdown input (active high). Do not leave open.
4 POK O Power OK indicator.
5 V

OUT

O Regulator output voltage.

Block Diagram

V

IN

EN

Shutdown

Control

Voltage

Reference

Thermal

Protec tion

Power Okay

Control

Current Sens e

Voltage

Supervisor

2.5ms Delay

V

POK

OUT

GND

Absolute Maximum Ratings

Symbol Parameter Rating Unit

VIN Input Voltage 7 V

VEN

PD

TJ

STG

T

S

T

Soldering Temperature (10 seconds) 300

ESD ESD Classification 2 kV

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

Enable Input Voltage 7 V

Power Dissipation Internally Limited W

Junction Temperature 150

Storage Temperature -65 to +150

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°C
°C
°C

APL5158

Thermal Characteristics

Symbol

θ

JA

Thermal Resistance in Free Air

Parameter Rating Unit

SOT-23-5

357 °C/W

Electrical Characteristics

T

=25°C, V

A

Symbol Parameter Test Conditions

VIN Input Voltage

V

OUT

IQ Quiescent Current

I

GND

IL Output Load Current 150 mA

I

LIMIT

µV
µV

VIN-V

CL

I

REV

Enable Input

VIL

VIH

IEN Enable Input Current

Thermal Protection

TSD Thermal Shutdown 150 °C

T

SDHYS

Power Good

V

POK

VOL VO Out of Regulation Fault Condition,IOL=2mA,VIN=3.3V 0.13 0.15 V

I

POK

Switching Characteristics

t

STEP

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

=5V, V

I

(EN)

=VI, I

=100µA, CL=1µF, unless otherwise specified.

O

APL5158

Min. Typ. Max.

2.7

Output Voltage IO=25mA 1.2 V

Output Voltage Accuracy

Ground Terminal Current

IO=0mA -1.0 +1.0 %

=1~150mA,TA=0°C to 70°C -2.0 +2.0 %

I

O

Ø0.8V

V

(EN)

I

=0mA

O

=150mA

I

O

0.45 1
60
370

Output Current Limit 300 600 m A

Line Regulation V

LNR

Load Regulation I

LDR

Dropout Voltage

OUT

=2.7V to 6V

IN

=10mA to 150mA

O

I

=100µA

O

=150mA 1.5 V

I

O

-0.1 +0.1

0.2 1

1.5

Load Capacitance ESR and Capacitance Tradeoffs 1
Reverse Output Current on
V

IN

Enable Input Logic-Low
Voltage
Enable Input Logic-High
Voltage

Resistance Discharge

=GND, V

IN

=2.7V to 6V Regulated Shutdown

V

IN

=2.7V to 6V Regulated Enabled

V

IN

Shutdown, V
Enabled, V

0.8V

V

Ø

EN

= Regulated Voltage

OUT

Ø0.8V

IL

Ù2V

IH

0.4

1.6

0.01

0.01
500

V

Hysteresis 15 °C

Low Threshold Output Falls % of V

High Threshold

Output Reaches % of V
Timer(Power OK)

POK Leakage Current Power good off,VIN=5V

Power Up Overshoot Max Voltage Overshoot Allowed on

(Power not OK) 83 %

OUT

,Starts Delay

O

90

1

1 %

Output During Power Up

Output Transient Time Limit Time for Output to Return within

5

Specified Regulation Range

Output Transient Voltage

Limit

Voltage that Load Step can Affect the
Nominal Output Voltage

1 %

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Unit

6 V

µA
µA
µ

A

%
%

V

µF

4 mA

V

V

µA
µA

Ω

%

µA

µs

APL5158

Electrical Characteristics Cont.

T

=25°C, V

A

Symbol Parameter Test Conditions

ISR Load Step Current Slew

V

POK

Delay

Note 1 : Positive output current means the regulator is sourcing load current, and negative one is sinking

load current.

Application Circuit

=5V, V

I

Rate

(EN)

=VI, I

=100µA, CL=1µF, unless otherwise specified.

O

IL=10mA to 150mA

APL5158

Min. Typ. Max.

10

Unit

mA/µs

tr Power Up Rise Time 3 ms
tf Power Down Fall Time

Delay Time to Power Good 1 2.5 5 ms

VIN=3 to 6V

Discharge resistance=500Ω,

V

<1.08V

O

V

=1.2V

OUT

60

µs

1µF

1

V

IN

2

GND

3

EN POK

APL5158

5

V

OUT

4

10KΩ

1µF

Typical Application For Processor VID Code Power Sequencing Schematic

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

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APL5158

Timing Chart

EN

V

I

90% max

V

O

Fault Condition

83% min

2.5ms 2.5ms

POK Delay 2.5 ms typ.

POK

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

www.anpec.com.tw5