Datasheet

TPS77301/315/316/318/327/328/333/350 WITH RESET OUTPUT
TPS77401/415/418/427/428/433/450 WITH POWER GOOD OUTPUT
250-mA LDO REGULATORS WITH 8-PIN MSOP PACKAGING
SLVS281E – FEBRUARY 2000 – REVISED JULY 2001
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating junction temperature range (T
J
= –40°C to
125°C), V
I
= V
O(typ)
+ 1 V, I
O
= 1 mA, EN = 0 V, C
O
= 10 µF (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Adjustable
1.5 V ≤ V
O
≤ 5.5 V, T
J
= 25°C V
O
V
Adjustable
voltage
1.5 V ≤ V
O
≤ 5.5 V 0.98V
O
1.02V
O
V
1 5 V Output
T
J
= 25°C, 2.7 V < V
IN
< 10 V 1.5
V
1.5-V Output
2.7 V < V
IN
< 10 V 1.470 1.530
V
1 6 V Output
T
J
= 25°C, 2.7 V < V
IN
< 10 V 1.6
V
1.6-V Output
2.7 V < V
IN
< 10 V 1.568 1.632
V
1 8 V Output
T
J
= 25°C, 2.8 V < V
IN
< 10 V 1.8
Output voltage (see Notes 2 and 4)
1.8-V Output
2.8 V < V
IN
< 10 V 1.764 1.836
Output voltage (see Notes 2 and 4)
2 7 V Output
T
J
= 25°C, 3.7 V < V
IN
< 10 V 2.7
2.7-V Output
3.7 V < V
IN
< 10 V 2.646 2.754
V
2 8 V Output
T
J
= 25°C, 3.8 V < V
IN
< 10 V 2.8
V
2.8-V Output
3.8 V < V
IN
< 10 V 2.744 2.856
3 3 V Output
T
J
= 25°C, 4.3 V < V
IN
< 10 V 3.3
3.3-V Output
4.3 V < V
IN
< 10 V 3.234 3.366
5 0 V Output
T
J
= 25°C, 6.0 V < V
IN
< 10 V 5.0
V
5.0-V Output
6.0 V < V
IN
< 10 V 4.900 5.100
V
Quiescent current (GND current) (see Notes 2 and 4)
T
J
= 25°C 92
A
Quiescent current (GND current) (see Notes 2 and 4)
125
µA
Output voltage line regulation (∆V/V)(see Note 3)
V
O
+ 1 V < V
I
≤ 10 V, T
J
= 25°C 0.005 %/V
Output voltage line regulation (∆V
O
/V
O
)(see Note 3)
V
O
+ 1 V < V
I
≤ 10 V 0.05 %/V
Load regulation T
J
= 25°C 1 mV
Output noise voltage
BW = 300 Hz to 100 kHz, T
J
= 25°C,
TPS77318, TPS77418
55 µVrms
Output current limit V
O
= 0 V 0.9 1.3 A
Peak output current 2 ms pulse width, 50% duty cycle 400 mA
Thermal shutdown junction temperature 144 °C
Standby current
EN = V
I,
T
J
= 25°C 1 µA
Standby current
EN = V
I
3 µA
FB input current
Adjustable
voltage
FB = 1.5 V 1 µA
High level enable input voltage 2 V
Low level enable input voltage 0.7 V
Enable input current –1 1 µA
Power supply ripple rejection (TPS77318, TPS77418) f = 1 kHz, T
J
= 25°C 55 dB
NOTES: 2. Minimum input operating voltage is 2.7 V or V
O(typ)
+ 1 V, whichever is greater. Maximum input voltage = 10 V, minimum output
current 1 mA.
3. If V
O
< 1.8 V then V
I(max)
= 10 V, V
I(min)
= 2.7 V:
Line regulation (mV) +
ǒ
%ńV
Ǔ
V
O
ǒ
V
I(max)
* 2.7 V
Ǔ
100
1000
If V
O
> 2.5 V then V
I(max)
= 10 V, V
I(min)
= V
O
+ 1 V:
Line regulation (mV) +
ǒ
%ńV
Ǔ
V
O
ǒ
V
I(max)
*
ǒ
V
O
) 1
Ǔ
Ǔ
100
1000
4. I
O
= 1 mA to 250 mA