PAM2319

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

5

,

Power Analog Microelectronics Inc

www.poweranalog.com

Electrical Characteristic

T =25 C, V =3.3V, V =1.8V, C =10µF, C =10µF, L=1.0µH, unless otherwise noted.

A

IN

O

IN

O

O

Channel 1

PARAMETER

SYMBOL

Test Conditions

MIN

TYP

MAX

UNITS

Input Voltage Range

2.7

5.5

V

2.4

2.5

V

Hysteresis

240

mV

UVLO Threshold

1.8

V

Regulated Feedback Voltage

0.588

0.6

0.612

V

Reference Voltage Line Regulation

ΔV

F B

0.3

% /V

Regulated Output Voltage Acc uracy

-3

+3

%

Peak Inductor Current

1.5

A

Output Voltage Line Regulation

LNR

0.2

0.5

% /V

Output Voltage Load Regulation

LDR

-2

2

%

Quiescent Current

No load

40

80

µA

Shutdown Current

0.1

1

µA

3

MHz

Oscillator Frequenc y

1

MHz

P MOSFET

0.35

0.45

Ω

Drain-Sourc e On-State Resistance

N MOSFET

0.35

0.45

Ω

SW Leakage Current

±0.01

1

µA

Efficiency

η

Output1, Io=500mA,VIN=3.3V

84

%

PSM Threshold

Vin=3.3V

100

mA

EN Threshold High

V

EH

1.5

V

EN Threshold Low

0.3

V

EN Leak age Current

±0.01

µA

Soft-start

From EN1 to Output

2

mS

Over Temperature Protection

OTP

150

°C

OTH

30

°C

12/2011 Rev1.1