Exceeding the specifications below may result in permanent damage to the device or device malfunction. Operation outside of the parameters specified in the

Electrical Characteristics section is not recommended.

Unless otherwise noted: V

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Input Voltage Range

V

IN

2.7

5.5

V

∆V

OUT

I

-3

3

%

Line Regulation

V

LINEREG

V

0.2

%/V

Load Regulation

V

LOADREG

I

0.0008

%/mA

Minimum Duty Cycle

DC

MIN

18

%

LXA, LXB Current Limit

I

LIM

0.9

A

Quiescent Current

I

Q

I

50

μA

Shutdown Current

I

SD

ENA, ENB = 0, LXA, LXB = Open

0.1

1

μA

LXA and LXB

Leakage Current

I

V

0.1

1

μA

V

-2

0.1

μA

P-Channel On Resistance

R

DSP

I

0.35

Ω

N-Channel On Resistance

R

DSN

I

0.25

Ω

Absolute Maximum Ratings

Electrical Characteristics

Parameter

Symbol

Maximum

Units

VIN

V

IN

-0.3 to 7

V

EN, SYNC Input

V

-0.3 to V

V

LXA and LXB Voltages

V

-1 to V

V

VOUT

V

OUT

-0.3 to V

V

CTLA0, CTLA1, CTLA2, CTLB0, CTLB1 & CTLB2 Voltages

-0.3 to V

V

Output Short Circuit to GND

t

SC

Indefinite

s

LXA and LXB Currents

I

1.2

A

θ

JA

40

ºC/W

Operating Ambient Temperature

T

A

-40 to +85

ºC

Maximum Junction Temperature

T

J

150

ºC

Storage Temperature

T

S

-65 to +150

ºC

Reflow Solder Temperature

T

PKG

260

°C

V

ESD

2kV

Note:

(1) Calculated from package in still air, mounted to 3” x 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad as per JESD51 standards.

(2) Tested according to JEDEC standard JESD22-A114-B.

2

© 2006 Semtech Corp.

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