PAM2308

Dual High-Efficiency PWM Step-Down DC-DC Coverter

5

,

Power Analog Microelectronics Inc

www.poweranalog.com

07/2008 Rev 1.0

Electrical Characteristic

T =25 C, V =3.6V, V =1.8V, C =10μF, C =10μF, L=2.2μH, unless otherwise noted.

AIN

O

IN

O

O

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

0.3

%/V

Regulated Output Voltage Accuary

V

O

I

-3

+3

%

Peak Inductor Current

V

V

1.5

A

Output Voltage Line Regulation

LNR

0.2

0.5

%/V

Output Voltage Load Regulation

LDR

0.5

1.5

%

Quiescent Current (per channel)

No load

40

70

μA

Shutdown Current (per channel)

0.1

1

μA

1.2

1.5

1.8

MHz

Oscillator Frequency

500

kHz

P MOSFET

0.3

0.45

Ω

Drain-Source On-State Resistance

NMOSFET

0.35

0.5

Ω

SW Leakage Current (per channel)

±0.01

1

μA

High Efficiency

η

96

%

EN Threshold High

1.5

V

EN Threshold Low

0.3

V

EN Leakage Current

I

EN

±0.01

μA

Over Temperature Protection

OTP

150

°C

OTH

30

°C