3

© 2006 Semtech Corp.

www.semtech.com

SC473

POWER MANAGEMENT

Absolute Maximum Ratings

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 implied.

Parameter

Condition

Min

Max

Units

Supply Voltage (V5)

-0.3

6.5

V

BST to PGND

Static

-0.3

30

V

Transient <100ns

-0.3

34

V

BST to DRN

-0.3

6

V

DRN to PGND

Static

-2

25

V

Transient <100ns

-5

29

V

TG to PGND

DRN, -0.3

BST, +0.3

V

BG to PGND

-0.3

V5, +0.3

V

All Other Pins to PGND

-0.3

VCCA +0.3

V

Thermal Resistance Junction to Ambient

JESD51 Standard Method*

θ

JA

28

o

C/W

Operating Junction Temperature Range

T

J

-40

125

o

C

Storage Temperature Range

T

STG

-65

150

o

C

Peak IR Reflow (10-40sec)

T

IRreflow

260

o

C

Unless otherwise specified, VccA = V5 = 5V, -40° < T

Electrical Characteristics

*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.

Parameter

Condition

Min

Typ

Max

Units

Control / Driver Supply (V5)

V5 Operating Range

4.5

5.0

5.5

V

V5 UVLO

Rising

4.25

4.4

4.5

V

Hysteresis Falling

50

150

250

mV

V5 Current

EN = L0

10

μA

In UVLO

0.8

1.3

mA

Operating (Static)

10

12

mA