SC4524B

3

Exceeding the above specifications 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.

NOTES-

() Calculated from package in still air, mounted to 3” x 4.5”, 4 layer FR4 PCB with thermal vias under the exposed pad per JESD5 standards.

(2) Tested according to JEDEC standard JESD22-A4-B.

Electrical Characteristics

Unless otherwise noted, V

Absolute Maximum Ratings

V

BST Voltage ……………………………………………… 40V

BST Voltage above SW …………………………………… 24V

SS Voltage ……………………………………………-0.3 to 3V

FB Voltage …………………………………………… -0.3 to V

IN

SW Voltage ………………………………………… -0.6 to V

IN

SW Transient Spikes (0ns Duration)……… -2.5V to V

Peak IR Reflow Temperature ………………………….

260°C

Thermal Information

Maximum Junction Temperature……………………… 50°C

Storage Temperature ………………………… -65 to +50°C

Lead Temperature (Soldering) 0 sec ………………… 300°C

Parameter

Conditions

Min

Typ

Max

Units

Input Supply

Input Voltage Range

3

8

V

V

V

2.70

2.82

2.95

V

V

225

mV

V

V

2

2.6

mA

V

V

40

50

µA

Error Amplifier

Feedback Voltage

0.980

.000

.020

V

Feedback Voltage Line Regulation

V

0.005

%/V

FB Pin Input Bias Current

V

-70

-340

nA

Error Amplifier Transconductance

280

Error Amplifier Open-loop Gain

60

dB

COMP Pin to Switch Current Gain

8

A/V

COMP Maximum Voltage

V

2.4

V

COMP Source Current

V

7

µA

COMP Sink Current

V

25

Internal Power Switch

Switch Current Limit

(Note )

2.6

3.3

4.3

A

Switch Saturation Voltage

I

250

400

mV

Recommended Operating Conditions

Input Voltage Range ……………………………… 3V to 8V

Maximum Output Current ……………………………… 2A