Datasheet

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SLVS278E – AUGUST 2000 – REVISED MARCH 2003
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended free-air temperature range, V
CC
= 7 V (unless
otherwise noted) (continued)
5-V regulator
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
O
Output voltage
I
O
= 0 mA to 50 mA,
T
A
= 25°C
V
CC
= 5.5 V to 28 V,
4.8 5.2 V
R
(egin)
Line regulation V
CC
= 5.5 V to 28 V, I =10 mA 20 mV
R
(egl)
Load regulation I = 1 mA to 10 mA, V
CC
= 5.5 V 40 mV
I
OS
Short circuit output current 5VREG = 0 V, T
A
= 25°C 65 mA
V
(TO_H)
UVLO threshold voltage
5V OUT voltage
3.6 4.2
V
V
(TO_L)
UVLO threshold voltage 5V_OUT voltage
3.5 4.1
V
V
hys
Hysteresis 5V_OUT voltage 30 150 mV
output drivers
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OUT_u sink current V
O
= 3 V 1.2 A
OUT_u source current V
O
= 2 V –1.5 A
OUT_d sink current V
O
= 3 V 1.5 A
OUT_d source current V
O
= 2 V –1.5 A
I
(TRIP)
TRIP pin current T
A
= 25°C 11.5 13 14.5 µA
soft start
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
I
(SOFT)
Soft start current 1.6 2.3 2.9 µA
V
(TO_H)
Threshold voltage (SKIP mode)
3.7
V
V
(TO_L)
Threshold voltage (SKIP mode)
2.5
V
output voltage monitor
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
OVP comparator threshold 0.91 0.95 0.99 V
UVP comparator threshold 0.64 0.68 0.72 V
PG comparator 1, 2 threshold 0.75 0.78 0.81 V
PG comparator 3, 4 threshold 0.88 0.91 0.94 V
PG propagation dela from INV to POWERGOOD
Turnon 13
s
PG propagation delay from INV to POWERGOOD
Turnoff
1.2
µs
Timer latch current source
UVP protection 1.5 2.3 3.1
A
Timer latch current source
OVP protection 8 11.5 15
µA
supply current
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
I
CC
Supply current T
A
= 25°C, CT = 0 V, INV = 0 V 1.1 1.5 mA
I
CC(S)
Shutdown current STBY 1, STBY2, 5V_STBY = 0 V 0.001 10 µA