Unless otherwise noted: V

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Input Voltage Range

V

IN

2.5

5.5

V

UVLO Threshold (upper)

V

UVL

2.18

2.3

2.45

V

UVLO Hysteresis

V

UVLHYS

150

mV

Output Voltage Range

V

OUT

0.8

V

IN

V

FB Voltage Tolerance

V

FB

V

0.485

0.5

0.515

V

Load Regulation (PWM)

V

OUT LOAD

I

±0.5

±1

%

PSAVE Regulation

V

OUT PSAVE

SYNC/PWM=GND,C

V

±2

±3

%

P-Channel Current Limit

I

LIM(P)

V

1.96

2.8

3.57

A

Quiescent Current

I

Q

SYNC/PWM = GND, I

V

17

28

μA

Shutdown Current

I

SD

EN = GND, LX = OPEN

0.1

1

μA

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.

Parameter

Symbol

Maximum

Units

Input Supply Voltage

V

IN

-0.3 to 7

V

Logic Inputs

(N=SYNC/PWM, EN, MODE)

V

N

-0.3 to V

V

Output Voltage

V

OUT

-0.3 to V

V

ADJ Input

V

ADJ

-0.3 to V

V

LX Voltage

V

LX

-1 to V

V

θ

JA

40

°C/W

VOUT Short-Circuit to GND

t

SC

Continuous

s

Operating Ambient Temperature Range

T

A

-40 to +85

°C

Storage Temperature

T

S

-65 to +150

°C

Junction Temperature

T

J

-40 to +150

°C

Peak IR Reflow Temperature

T

PKG

260

°C

V

ESD

2kV

Notes:

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

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

Absolute Maximum Rating

Electrical Characteristics

2

© 2007 Semtech Corp.

www.semtech.com

SC196

PRELIMINARY

POWER MANAGEMENT