Diodes PAM3102 User Manual

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DUAL 150mA HIGH PSRR LOW-DROPOUT CMOS REGULATOR

Description

The dual LDO PAM3102 series of positive voltage linear regulators feature high output voltage accuracy, low quiescent current and low dropout voltage, making them ideal for battery powered applications. The line transient response and load transient response are excellent. Their high PSRR make them useful in applications where AC noise on the input power supply must be suppressed. Space-saving TSOT26 package for 2-ch LDOs is attractive for portable and handheld applications. They have both thermal shutdown and a current limit feature to prevent device failure under extreme operating conditions. They are stable with an output capacitance of 2.2μF or greater.

Features

 Output Accuracy: ±2%  Low Dropout Voltage: 180mV@150mA  High PSRR: 70dB@100Hz  Low Noise Output  Current Limiting  Short Circuit Protection  Thermal Shutdown  Space Saving Package TSOT26

 Pb-Free Package

Typical Applications Circuit

Diodes Incorporated

Pin Assignments

Applications

 Cellular Phone  Portable Electronics, PDA  Wireless Devices, Wireless LAN  Computer Peripherals  Camera Module  GPS Receiver

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Top View

TSOT26

PAM3102

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Pin Descriptions

Number

1 CE1 2 VIN 3 CE2 4 VOUT2 5 GND 6 VOUT1

Name

Output 1 Enable Input Output 2 Enable Output 2 Ground Output 1

Functional Block Diagram

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PAM3102

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 6.0 V Output Current 150/150 mA Output Pin Voltage Storage Temperature -40 to +125 °C ESD Rating (HBM) 2 kV Lead Soldering Temperature 300, (5sec) °C

PAM3102

Document number: DSxxxxx Rev. 1 - 2

= +25°C, unless otherwise specified.)

A

GND -0.3 to V

+0.3V

IN

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PAM3102

Recommended Operating Conditions (@T

= +25°C, unless otherwise specified.)

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Parameter Rating Unit

Supply Voltage Range 5.5 V Enable Input Resistance

0 to V

IN

Junction Temperature -40 to +125

Operation Temperature -40 to +85

V

°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, V

A

CE1

= V

Parameter Symbol Test Conditions Min Typ Max Units

Input Voltage Output Voltage

Dropout Voltage

V

V V

DROP

IN

IO = 1mA

O

= 1.8V, IO = 150mA

V

O

VO = 2.5V, IO = 150mA

VO = 2.8V, IO = 150mA

Output Current Current Limit Quiescent Current Ground Pin Current Shutdown Current Short Circuit Current

I

GND

I I

I

LIM

I

SD SC

Line Regulation LNR

150 Note 2 mA

O

VO ≥ 1.2V

IO = 0mA

Q

IO = 1mA to 150mA

V

CE1

= V

CE2

= 0V

VO = 0V

I

= 50mA, VIN = 3V to 4V VO = 1.8V

O

IO = 50mA, VIN = 3.5V to 4.5V VO = 2.5V

IO = 50mA, VIN = 3.8V to 4.8V VO = 2.8V Load Regulation LDR

Power Supply Ripple Rejection PSRR

Output Noise CE Input High Threshold CE Input Low Threshold

CE Pull-Up Resistance

V V V R

V

= 3.3V, IO = 1mA to 150mA

IN

I

= 50mA, VO = 1.8V

O

f = 10Hz to 100kHz 35

N

1.5 V

TH

0.3 V

TL

1.7 5 15 MΩ

CE

Temperature Coefficient TC 40 ppm/°C Over Temperature Shutdown OTS Over Temperature Hysteresis OTH

Notes: 1. The minimym inout voltage (V V

2. Output current is limited by P

IN(MIN)

= VO +V

DROP

IN(MIN

D

, maximum IO = PD/(V

I

= 1mA

O

I

= 1mA

O

) of the PAM3102 is determined by output voltage and dropout voltage. The minimum input voltage is defined as:

– VO).

IN(MAX)

TSOT26 130 TSOT26 250

°C/W

TSOT26 400 mW

= VIN = VO +1V, CIN = 2.2µF, CO = 2.2µF, unless otherwise specified.)

CE2

Note 1 5.5 V

-2.0 +2.0 % 950 350 180

200 mA 175 250 µA 200 250 µA

0.1 1 µA 150 mA

-0.15 0.1 0.15 %/V

-2 1.0 2 %

f = 100Hz 70 dB f = 1kHz 63 dB f = 10kHz 45 dB

155 °C 40 °C

mV

µV

RMS

PAM3102

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Typical Performance Characteristics (@T

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= +25°C, CIN = 2.2µF, CO = 2.2µF, unless otherwise specified.)

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PAM3102

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