Electrical specifications L5956
8/17 Doc ID 13852 Rev 4
REGULATOR 4
V
o (REG 4)
Output voltage 3.3 V - 3.15 3.3 3.45 V
V Line regulation V
in2
= 6 to 18 V; I = 800 mA - - 50 mV
V Line regulation V
in2
= 6 to 18 V; I = 10 mA - - 50 mV
Vi Load regulation I
reg4
= 1 to 800 mA - - 100 mV
I
q
Quiescent current I
reg4
= 10 mA - - 5 mA
PSRR Supply voltage ripple rejection
f = 1 kHz; V
in1
= 1.5 Vpp;
I
o
= 800 mA
50 - - dB
V
drop
Drop out voltage I
reg4
= 800 mA
(2)
--2.5V
I
m
Current limit R
short
= 0.5 1-2A
POWER SWITCH
V
dropSW
Drop voltage power switch I
dcSW
= 1.8A max. - - 0.5 V
I
pSW1
Peak current power switch Peak time 15 ms 2 - 3.5 A
I
pSW2
Peak current power switch Peak time 40 ms 1 - 2 A
SW
DEL
Delay protection - 15 - 40 ms
RESET BUFFER (with push-pull buffer)
RES RES falling Vreg2 = 5 V 4.6 4.7 4.8 V
RES RES rising Vreg2 = 5 V 4.65 4.8 4.95 V
V
HYS(RES)
Hysteresis of reset buffer - 50 100 200 mV
IH
source (RES)
High level source current Reset = 0 V 1000 1300 1600 µA
IL
sink (RES)
Low level sink current Reset = 5 V 14 16 18 mA
RES
delay
Cres = 47nF - 10 - 60 ms
TRES Reset rise and fall time R = 10 k, C = 15 pF - - 50 µs
I
Charge
Charge current C
RES
= 0 V 3 5 10 µA
I
Discharge
Discharge current C
RES
= 5 V 1 - 3 mA
V
TH(F)
Falling voltage threshold - 1 1.2 1.4 V
V
TH(R)
Rising voltage threshold - 2.5 2.8 3.5 V
V
ol
Low level I
SINK(RES)
= 1 mA - 0.3 0.5 V
V
oh
High level - 4.5 Vreg2 5.5 V
HOLD SIGNAL
V
lowI
Hold
output low for V
in1
low Low detection - - 9 V
V
lowh
Hold output high for V
in1
normal
Normal high detection 10 - 18 V
V
lowl
Hold output low for V
in1
high low detection 22 - - V
Table 4. Electrical characteristics (continued)
Symbol Parameter Test condition Min. Typ. Max. Unit