LM2597, LM2597HV

www.ti.com

SNVS119C – MARCH 1998 – REVISED APRIL 2013

All Output Voltage Versions

Electrical Characteristics

(continued)

Symbol

Parameter

Conditions

LM2597/LM2597HV-XX

Units

(Limits)

FLAG/DELAY CONTROL Test Circuit of Figure 31

Regulator Dropout

Low (Flag ON)

96

%

Detector

92

%(min)

Threshold Voltage

98

%(max)

Flag Output Saturation

0.3

V

Voltage

0.7/1.0

V(max)

Flag Output Leakage

0.3

μA

Current

Delay Pin Threshold

1.25

V

Voltage

Low (Flag ON)

1.21

V(min)

1.29

V(max)

Delay Pin Source

3

μA

Current

6

μA(max)

Delay Pin Saturation

Low (Flag ON)

55

mV

350/400

mV(max)

BIAS SUPPLY

Bias Supply Pin Current

(9)

120

μA

400

μA(max)

(9)

4

mA

10

mA(max)

Operating Quiescent Current

(9)

1

2

mA

(9)

Feedback pin removed from output and connected to 12V for the 3.3V, 5V, and the ADJ. version, and 15V for the 12V version, to force

the output transistor switch OFF.

Copyright © 1998–2013, Texas Instruments Incorporated

Submit Documentation Feedback

7

Product Folder Links: LM2597 LM2597HV