Datasheet

Lineregulation(mV)=(%/V)x V
o
x1000
(V 2.7)
100
-
Imax
x1000
[ V (V +1) ]
100
-
Imax o
Lineregulation(mV)=(%/V)x V
o
(3) If V
O
< 1.8V then V
Imax
= 6V, V
Imin
= 2.7V:
If V
O
> 2.5V then V
Imax
= 6V, V
Imin
= V
O
+ 1V:
TPS70245, TPS70248
TPS70251, TPS70258
TPS70202
www.ti.com SLVS286E –JUNE 2000–REVISED DECEMBER 2009
ELECTRICAL CHARACTERISTICS
Over recommended operating junction temperature range (T
J
= –40°C to +125°C), V
IN1
or V
IN2
= V
OUT(nom)
+ 1V, I
O
= 1mA,
EN1 = 0V, EN2 = 0V, and C
O
= 33μF (unless otherwise noted).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
2.7V < V
IN
< 6V,
FB connected to V
O
1.22
Reference
T
J
= +25°C
voltage
2.7V < V
IN
< 6V, FB connected to V
O
1.196 1.244
2.7V < V
IN
< 6V, T
J
= +25°C 1.2
1.2V Output
2.7V < V
IN
< 6V, 1.176 1.224
2.7V < V
IN
< 6V, T
J
= +25°C 1.5
Output
1.5V Output
2.7V < V
IN
< 6V, 1.47 1.53
V
O
voltage
(1) ,
V
(2)
2.8V < V
IN
< 6V, T
J
= +25°C 1.8
1.8V Output
2.8V < V
IN
< 6V, 1.764 1.836
3.5V < V
IN
< 6V, T
J
= +25°C 2.5
2.5V Output
3.5V < V
IN
< 6V, 2.45 2.55
4.3V < V
IN
< 6V, T
J
= +25°C 3.3
3.3V Output
4.3V < V
IN
< 6V, 3.234 3.366
Quiescent current (GND current) for See
(2)
T
J
= +25°C 190
regulator 1 and regulator 2, EN1 = EN2 μA
See
(2)
230
= 0V
(1)
Output voltage line regulation (∆V
O
/V
O
) V
O
+ 1V < V
IN
≤ 6V, T
J
= +25°C
(1)
0.01
%V
for regulator 1 and regulator 2
(3)
V
O
+ 1V < V
IN
≤ 6V
(1)
0.1
Load regulation for V
OUT 1
and V
OUT2
T
J
= +25°C 1 mV
Output noise Regulator 1 65
V
n
BW = 300Hz to 50kHz, C
O
= 33μF, T
J
= +25°C μV
RMS
voltage
Regulator 2 65
Regulator 1 1.6 1.9
Output current limit V
OUT
= 0V A
Regulator 2 0.750 1
Thermal shutdown junction temperature +150 °C
Regulator 1 EN1 = V
IN
, EN2 = V
I
T
J
= +25°C 2
I
I
Standby
μA
(standby) current
Regulator 2 EN1 = V
IN
, EN2 = V
I
6
f = 1kHz, C
O
= 33μF,
Regulator 1 T
J
= +25°C
(1)
60
Power-
I
OUT1
= 500mA
PSRR supply ripple dB
f = 1kHz, C
O
= 33μF,
rejection
Regulator 2 T
J
= +25°C
(1)
50
I
OUT2
= 250mA
UVLO threshold 2.4 2.65 V
RESET Terminal
Minimum input voltage for valid RESET I
RESET
= 300μA, V
(RESET)
≤ 0.8V 1.0 1.3 V
t
(RESET)
RESET pulse duration 80 120 160 ms
Output low voltage V
IN
= 3.5V, I
(RESET)
= 1mA 0.15 0.4 V
Leakage current V
(RESET)
= 6V 1 μA
(1) Minimum input operating voltage is 2.7V or V
O(typ)
+ 1V, whichever is greater. Maximum input voltage = 6V, minimum output
current = 1mA.
(2) I
O
= 1mA to 500mA for Regulator 1 and 1mA to 250mA for Regulator 2.
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