ZSPM4022-06

12V/6A Synchronous DC/DC Buck Regulator

Data Sheet

August 29, 2013

© 2013 Zentrum Mikroelektronik Dresden AG

— Rev. 1.00

All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the

prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.

7 of 37

1.3.

Electrical Parameters

Yellow shaded values indicate that

40°C ≤ T

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Power Supply Input

Input Voltage Range

4.5

19

V

Quiescent Supply Current

450

750

µA

Shutdown Supply Current

5

10

µA

VDD Output Voltage

4.8

5

5.4

V

VDD UVLO Threshold

3.7

4.2

4.5

V

VDD UVLO Hysteresis

400

mV

Dropout Voltage (VIN

– VDD)

380

600

mV

DC/DC Controller

Output-Voltage Adjustment

0.8

5.5

V

Reference

Feedback (FB) Reference

Voltage

0.792

0.8

0.808

V

40°C ≤ T

0.788

0.8

0.812

Load Regulation

Mode)

0.25

%

Line Regulation

0.25

%

FB Bias Current

50

500

nA

Enable Control

EN Logic Level High

1.8

V

EN Logic Level Low

0.6

V

EN Bias Current

6

30

µA

Oscillator

Switching Frequency

450

600

750

kHz

Maximum Duty Cycle

1)

82

%

Minimum Duty Cycle

0

%

Minimum Off-time

300

ns

Soft-Start

Soft-Start time

3

ms