Datasheet

LMR70503
SNVS850A –JUNE 2012–REVISED APRIL 2013 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
Specifications with standard typeface are for T
J
= 25°C only; limits in bold face type apply over the operating junction
temperature (T
J
) range of -40 °C to +125 °C. Typical values represent the most likely parametric norm at T
J
= 25°C, and are
provided for reference purposes only. V
IN
= 3.3 V, V
OUT
= -5.0 V, V
EN
= 1.8 V, unless otherwise indicated in the conditions
column.
Min Typ Max
Symbol Parameter Conditions Units
(1) (2) (1)
I
PEAK-CL
Switch Peak Current limit
(3)
270 320 370 mA
TSD
TH-HIGH
Thermal Shutdown Threshold - Rising Junction Temperature 165 °C
TSD
HYS
Thermal Shutdown Hysteresis Band Junction Temperature 10 °C
(3) The switch peak current limit is internally trimmed. The actual peak current limit observed on the applications are dependant on the input
voltage V
IN
, inductance value L and junction temperature T
J
.
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