Diodes PAM3116 User Manual

A

f

Description

The PAM3116 is a 1.5A CMOS LDO regulator that features a low

quiescent current and low dropout voltages, as well as over

temperature shutdown. The PAM3116 is stable with a ceramic output

capacitor of 4.7µF or higher.

This family of regulators can provide either a stand-alone power

supply solution or act as a post regulator for switch mode power

supplies. They are particularly suitable for applications requiring low

input and output voltages.

PAM3116 is available in SOP-8 package.

Features

• High Output Current Up to 1.5A

• Output Voltage Available in ADJ(0.8V)

• Stable with a Ceramic Output Capacitor

• Dropout Voltage: 300mV@1.5A, Vo = 3.3V

• Low Quiescent Current

• Over Temperature Shutdown

• Short Circuit Protection

• Low Temperature Coefficient

• Standard SOP-8 Packages

• Pb-Free Package

Typical Applications Circuit

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Diodes Incorporated

PAM3116

1.5A LOW DROPOUT VOLTAGE CMOS REGULATOR

Pin Assignments

Applications

• LCD TV/Monitors

• Set-top Box

• IPhone Charger

• Communication Devices

= 0.8 x (1+R1/R2)

V

OUT

PAM3116

Document number: DSxxxxx Rev. 1 - 0

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Pin Description

Pin Name

VIN 2

EN 3

ADJ 6

VOUT 7

NC

GND

Pin Number

SOP-8

1, 5, 8

4

Supply Input Voltage.

Chip Enable

Set the output voltage by the feedback resistors.

Output Voltage.

No Internal Connection.

Ground

Functional Block Diagram

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PAM3116

Function

Absolute Maximum Ratings (@T

These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may affect device reliability. All voltages are with respect to ground.

Parameter Rating Unit

Input Voltage 6.5 V

Output Pin Voltage

EN, ADJ, OUTPUT SENSE Pin Voltage

Maximum Output Current

Storage Temperature -65 to +150 °C

Maximum Junction Temperature 150 °C

Lead Soldering Temperature 300, (5sec) °C

PAM3116

Document number: DSxxxxx Rev. 1 - 0

= +25°C, unless otherwise specified.)

A

-0.3 to V

P

/(VIN–VO)

D

+0.3

IN

+0.3

IN

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—

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PAM3116

Recommended Operating Conditions (@T

= +25°C, unless otherwise specified.)

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Parameter Rating Unit

Maximum Supply Voltage 6 V

Ambient Temperature Range -40 to +85

Junction Temperature Range -40 to +125

°C

Thermal Information

Parameter Symbol Package Max Unit

Thermal Resistance (Junction to Case)

Thermal Resistance (Junction to Ambient)

Internal Power Dissipation

θ

JC

θ

JA

P

D

Electrical Characteristics (@T

= +25°C, VIN = VO +1V, CIN = 4.7µF, CO = 4.7µF, unless otherwise specified.)

A

Parameter Symbol Test Conditions Min Typ Max Units

Input Voltage Range

Output Voltage Range

ADJ Reference Voltage

Output Voltage Accuracy

Output Current

Output Current Limit

Short Circuit Current

Dropout Voltage

Quiescent Current

V

REF

V

I

O

I

LIM

I

SC

DROP

I

Q

Line Regulation LNR

Load Regulation LDR

Temperature Coefficient

T

Over Temperature Shutdown OTS

Over Temperature Hysteresis OTH

Power Supply Ripple Rejection PSRR

Output Noise Vn

EN Input High Threshold

EN Input Low Threshold

EN Input High Bias Current

EN Input Low Bias Current

Shutdown Current

V

EH

V

EL

I

EH

I

EL

I

SD

IN

O

IO = 1mA

O

VO > 0.8V

IO = 0mA

IO = 1.5A

IO = 0mA

I

= 1mA, VIN = VO +1 to VO +2

O

I

= 1mA to 1500mA

O

40 ppm/°C

C

I

= 1mA

O

I

= 1mA

O

I

= 100mA, VO = 1.2mA

O

f = 10Hz to 100kHz, I

VIN = 2.5V to 5V

VEN = 5V, VIN = 5V

VEN = 0V, VIN = 5V

VEN = 0V

PAM3116

Document number: DSxxxxx Rev. 1 - 0

www.diodes.com

SOP-8 11

SOP-8 90

°C/W

SOP-8 1100 mW

2.5 6.0 V

0.8 5 V

0.788 0.8 0.812 V

-1.5 1.5 %

1500 mA

1500 2500 mA

700 mA

0.8V ≤ V

VO ≥ 2.5V

< 2.5V

O

1700

300 400

90 150 µA

-0.4 0.4 %/V

-1.0 0.2 +1.0 %

150 °C

40 °C

f = 100Hz 70

f = 1kHz 65

f = 10kHz 50

= 10mA

O

50

1.5 V

0.3 V

0.5 µA

1 µA

3 of 10

mV

dB

µV

RMS

October 2012