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TPS77401 Datasheet(PDF) 8 Page - Texas Instruments

No. de Pieza. TPS77401
Descripción  250-mA LDO REGULATORS WITH INTEGRATED RESET OR PG
Descarga  23 Pages
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Fabricante  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS77401 Datasheet(HTML) 8 Page - Texas Instruments

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TPS77301, TPS77318, TPS77327, TPS77328, TPS77333 WITH RESET OUTPUT
TPS77401, TPS77418, TPS77427, TPS77428, TPS77433 WITH POWER GOOD OUTPUT
250-mA LDO REGULATORS WITH INTEGRATED RESET OR PG
SLVS281A – FEBRUARY 2000 – REVISED MARCH 2000
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating junction temperature range (TJ = –40°C to
125
°C), VI = VO(typ) + 1 V, IO = 1 mA, EN = 0 V, CO = 10 µF (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Adjustable
1.5 V
≤ VO ≤ 5.5 V,
TJ = 25°C
VO
j
voltage
1.5 V
≤ VO ≤ 5.5 V
0.98VO
1.02VO
1 8 V Output
TJ = 25°C,
2.8 V < VIN < 10 V
1.8
1.8 V Output
2.8 V < VIN < 10 V
1.764
1.836
Output voltage (see Notes 2 and 4)
2 7 V Output
TJ = 25°C,
3.7 V < VIN < 10 V
2.7
V
Output voltage (see Notes 2 and 4)
2.7 V Output
3.7 V < VIN < 10 V
2.646
2.754
V
2 8 V Output
TJ = 25°C,
3.8 V < VIN < 10 V
2.8
2.8 V Output
3.8 V < VIN < 10 V
2.744
2.856
3 3 V Output
TJ = 25°C,
4.3 V < VIN < 10 V
3.3
3.3 V Output
4.3 V < VIN < 10 V
3.234
3.366
Quiescent current (GND current) (see Notes 2 and 4)
TJ = 25°C
92
µA
Quiescent current (GND current) (see Notes 2 and 4)
125
µA
Output voltage line regulation (
∆VO/VO)(see Note 3)
VO + 1 V < VI ≤ 10 V, TJ = 25°C
0.005
%/V
Output voltage line regulation (
∆VO/VO)(see Note 3)
VO + 1 V < VI ≤ 10 V
0.05
%/V
Load regulation
TJ = 25°C
1
mV
Output noise voltage
BW = 300 Hz to 100 kHz, TJ = 25°C,
TPS77318, TPS77418
55
µVrms
Output current limit
VO = 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 = VI,
TJ = 25°C
1
µA
Standby current
EN = VI
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,
TJ = 25°C
55
dB
Minimum input voltage for valid PG
I(PG) = 300 µA
V(PG) ≤ 0.8 V
1.1
V
PG
Trip threshold voltage
VO decreasing
79
85
%VO
PG
(TPS774xx)
Hysteresis voltage
Measured at VO
0.5
%VO
(TPS774xx)
Output low voltage
VI = 2.7 V,
I(PG) = 1 mA
0.15
0.4
V
Leakage current
V(PG) = 5 V
1
µA
NOTES:
2. Minimum input operating voltage is 2.7 V or VO(typ) + 1 V, whichever is greater. Maximum input voltage = 10 V, minimum output
current 1 mA.
3. If VO < 1.8 V then Vimax = 10 V, Vimin = 2.7 V:
Line regulation (mV)
+ % V
V
O
V
imax *
2.7 V
100
1000
If VO > 2.5 V then Vimax = 10 V, Vimin = Vo + 1 V:
Line regulation (mV)
+ % V
V
O
V
imax *
V
O )
1
100
1000
4. IO = 1 mA to 250 mA


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