Datasheet

LM2651
www.ti.com SNVS032D –FEBRUARY 2000–REVISED APRIL 2013
All Output Voltage Versions (continued)
Specifications in standard type face are for T
J
= 25°C and those with boldface type apply over full operating junction
temperature range. V
IN
=10V unless otherwise specified.
Symbol Parameter Conditions Typical Limit Units
f
OSC
Oscillator Frequency V
IN
= 4V 300 kHz
280/255 kHz(min)
330/345 kHz(max)
D
MAX
Maximum Duty Cycle V
IN
= 4V 95 %
92 %(min)
I
SS
Soft-Start Current Voltage at the SS pin = 1.4V 11 µA
7 µA(min)
14 µA(max)
I
SHUTDOWN
Shutdown Pin Current Shutdown Pin Pulled Low 2.2 µA
0.8/0.5 µA(min)
3.7/4.0 µA(max)
v
SHUTDOWN
Shutdown Pin Threshold Voltage Falling Edge 0.6 V
0.3 V(min)
0.9 V(max)
T
SD
Thermal Shutdown Temperature 165 °C
T
SD_HYST
Thermal Shutdown Hysteresis 25
°C
Temperature
Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 5
Product Folder Links: LM2651