Electrical Characteristic

T =25

, V =3.6V, V =1.8V, C =10µF, C =10µF, L=4.7µH, unless otherwise noted.

A

IN

O

IN

O

°C

4

,

Power Analog Microelectronics Inc

www.poweranalog.com

PAM2312

1A Step-Down DC-DC Converter

PARAMETER

SYMBOL

Test Conditions

MIN

TYP

MAX

UNITS

Input Voltage Range

2.5

5.5

V

Regulated Feedback Voltage

0.588

0.6

0.612

V

Reference Voltage Line Regulation

ΔV

FB

0.3

%/V

Regulated Output Voltage Accuary

-3

+3

%

Peak Inductor Current

1.5

A

Output Voltage Line Regulation

LNR

0.2

0.5

%/V

Output Voltage Load Regulation

LDR

0.5

1.5

%

Quiescent Current

No load

40

70

µA

Shutdown Current

1

µA

1.2

1.5

1.8

MHz

Oscillator Frequency

500

k Hz

P MOSFET

0.3

0.45

Ω

Drain-Source On-State Res istance

N MOSFET

0.35

0.5

Ω

SW Leakage Current

±0.01

1

µA

High Effic iency

η

96

%

EN Threshold High

1.5

V

EN Threshold Low

0.3

V

EN Leakage Current

±0.01

µA

Over Temperature Protection

OTP

150

°C

OTH

30

°C

05/2010 Rev1.0