TS2580 datasheet(2/5 Pages) TSC

2 / 5 page

TS2580

2A / 52KHz Buck Switching Regulator

2/5

Version: B11

Electrical Specifications (Ta = 25

oC unless otherwise noted, V

IN=12V, ILOAD =0.5A)

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Output Feedback

VFB

4.5V≤ VIN ≤40V

0.2A≤ ILOAD ≤3A

1.180

1.23

1.280

Efficiency

VIN =12V, ILOAD =3A, VOUT =3.3V

Feedback Bias Current

IFB

VFB = 1.3V (Adjustable Version)

Oscillator Frequency

FOSC

KHz

Current Limit

ICL

Pear Current, no outside circuit

VFB =0V force driver on

2.2

Saturation Voltage

VSAT

IOUT=2A, No outside circuit

VFB =0V force driver on

1.2

1.4

ON/OFF Pin Logic Input

Threshold Voltage

VIL

Low (regulator ON)

1.3

0.6

VIH

High (regulator OFF)

2.0

ON/OFF Pin Logic Input Current

VLOGIC =2.5V (OFF)

-0.1

-10

µA

VLOGIC =0V (ON)

-0.01

-1

Maximum Duty Cycle (ON)

VFB =0V force driver on

100

Maximum Duty Cycle (OFF)

VFB =1.5V for ADJ version force

driver off

Quiescent Current

VFB =1.5V force driver off

Standby Quiescent Current

ISTBY

ON/OFF pin=5V

VIN =40V

100

200

µA

SW Pin Leakage

Current

SW pin=0V

ISWL

No outside circuit, VFB =1.5V for

ADJ version force force driver off

-200

SW pin=-0.8B

VIN =40V force driver off

-5

Block Diagram

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