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ELMOS Semiconductor AG

Data Sheet

QM-No.: 25DS0064E.01

PRELIMINARY INFORMATION - MAY 29, 2012

This document contains information on a pre-production product. ELMOS Semiconductor AG reserves the right to change specifications and information herein without notice.

LOW QUIESCENT CURRENT STEP DOWN CONVERTER FAMILY

6 Electrical Characteristics

Description

Condition

Symbol

Min

Typ

Max

Unit

Supply

Sleep mode

quiescent current

V

non-switching

I

VIN,q,SLP

8

µA

Active mode

quiescent current

V

I

I

VIN,q

12

µA

Active mode

quiescent current

V

L

I

VIN,q

150

µA

Input resistance at pin ON

V

I

ON

7

MΩ

Threshold voltage

at pin ON

V

VIN > 4.5V

V

ON,th

1.40

1.48

1.56

V

VIN Undervoltage Lockout

V

V

VIN,UV

3.5

4.2

V

Output Current Limit Programming

Output voltage at OCP

24kΩ ≤ R

V

OCP

500

mV

OCP Selection Resistor

R

OCP

24

60

kΩ

Load capacitance at OCP

C

OCP

100

pF

E522.01 Output

I

V

V

OUT

4.8

5.0

5.2

V

On Resistance at LXT

V

R

DS(ON)

0.7

1.5

Ω

Over-current detection

R

2)

I

OCP,24kΩ

740

830

920

mA

R

2)

I

OCP,60kΩ

300

350

400

mA

E522.02 Output

I

V

V

OUT

3.2

3.33

3.46

V

On Resistance at LXT

V

R

DS(ON)

0.7

1.5

Ω

Overcurrent detection

R

2)

I

OCP,24kΩ

740

830

920

mA

R

2)

I

OCP,60kΩ

300

350

400

mA

E522.03 Output

I

V

V

OUT

4.8

5.0

5.2

V

On Resistance at LXT

V

R

DS(ON)

1.1

2.5

Ω

Overcurrent detection

R

2)

I

OCP,24kΩ

490

550

610

mA

R

2)

I

OCP,60kΩ

190

230

270

mA

E522.04 Output

I

V

V

OUT

3.2

3.33

3.46

V

On Resistance at LXT

V

R

DS(ON)

1.1

2.5

Ω

Overcurrent detection

R

2)

I

OCP,24kΩ

490

550

610

mA

R

2)

I

OCP,60kΩ

190

230

270

mA

(V

Positive currents flow into the device pins.)

1) Given value is switching threshold at pin SENSE, for V

2) Measured at V