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Line regulation (mV) + (%ńV)
V
O
(V
I(max)
* 2.7 V)
100
1000
Line regulation (mV) + (%ńV)
V
O
[V
I(max)
* (V
O
) 1)]
100
1000
Electrical Characteristics
TPS70751-EP
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATOR
WITH POWER-UP SEQUENCING FOR SPLIT-VOLTAGE DSP SYSTEMS
SLVS718 – DECEMBER 2006
over recommended operating junction temperature (T
J
= –55 ° C to 125 ° C), V
IN1
or V
IN2
= V
O(nom)
+ 1 V, I
O
= 1 mA, EN = 0,
C
O
= 33 µ F (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Reference 2.7 V < V
I
< 6 V, FB connected to V
O
,
1.22
voltage T
J
= 25 ° C
2.8 V < V
I
< 6 V, T
J
= 25 ° C 1.8
1.8-V output
V
O
Output voltage
(1) (2)
V
2.8 V < V
I
< 6 V 1.764 1.836
4.3 V < V
I
< 6 V, T
J
= 25 ° C 3.3
3.3-V output
4.3 V < V
I
< 6 V 3.234 3.366
T
J
= 25 ° C 190
Quiescent current (GND current) for regulator 1 and
µ A
regulator 2, EN = 0 V
(1) (2)
230
V
O
+ 1 V < V
I
≤ 6 V, T
J
= 25 ° C 0.01%
Output voltage line regulation ( ∆ V
O
/V
O
) for regulator
V
1 and regulator 2
(3) (2)
V
O
+ 1 V < V
I
≤ 6 V 0.1%
Load regulation for V
OUT1
and V
OUT2
(1)
T
J
= 25 ° C 1 mV
Regulator 1 65
BW = 300 Hz to 50 kHz,
V
n
Output noise voltage µ Vrms
C
O
= 33 µ F, T
J
= 25 ° C
Regulator 2 65
Regulator 1 1.6 2.1
Output current limit V
O
= 0 V A
Regulator 2 0.750 1.1
Thermal shutdown junction temperature 150 ° C
EN = V
I
, T
J
= 25 ° C 2
Regulator 1 and
I
I(standby)
Standby current µ A
Regulator 2
EN = V
I
6
PSRR Power-supply ripple rejection f = 1 kHz, C
O
= 33 µ F, T
J
= 25 ° C 60 dB
(1) I
O
= 1 mA to 250 mA for regulator 1 and 1 mA to 125 mA for regulator 2
(2) Minimum input operating voltage is 2.7 V or VO(typ) + 1 V, whichever is greater. Maximum input voltage = 6 V, minimum output current
1 mA.
(3) If V
O
< 1.8 V, then V
I(max)
= 6 V, V
I(min)
= 2.7 V:
If V
O
> 2.5 V, then V
I(max)
= 6 V, V
I(min)
= Vo + 1 V:
8
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