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TPS70751-EP Fiches technique(PDF) 9 Page - Texas Instruments

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No de pièce TPS70751-EP
Description  DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATOR WITH POWER-UP SEQUENCING FOR SPLIT-VOLTAGE DSP SYSTEMS
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS70751-EP Fiches technique(HTML) 9 Page - Texas Instruments

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TPS70751-EP
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATOR
WITH POWER-UP SEQUENCING FOR SPLIT-VOLTAGE DSP SYSTEMS
SLVS718 – DECEMBER 2006
Electrical Characteristics (continued)
over recommended operating junction temperature (T
J = –55°C to 125°C), VIN1 or VIN2 = VO(nom) + 1 V, IO = 1 mA, EN = 0,
C
O = 33 µF (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
RESET
Minimum input voltage for valid RESET
I(RESET) = 300 µA, V(RESET) ≤ 0.8 V
1
1.3
V
Trip threshold voltage
VO decreasing
92%
95%
98%
VO
Hysteresis voltage
Measured at VO
0.5%
VO
t(RESET)
RESET pulse duration
80
120
160
ms
tr(RESET)
Rising-edge deglitch
30
µs
Output low voltage
VI = 3.5 V, I(RESET) = 1 mA
0.15
0.4
V
Leakage current
V(RESET) = 6 V
1
µA
PG1
Minimum input voltage for valid PG1
IO(PG1) = 300 µA, V(PG1) ≤ 0.8 V
1
1.3
V
Trip threshold voltage
VO decreasing
92%
95%
98%
VO
Hysteresis voltage
Measured at VO
0.5%
VO
tf(PG1)
Falling-edge deglitch
30
µs
Output low voltage
VI = 2.7 V, I(PG1) = 1 mA
0.15
0.4
V
Leakage current
V(PG1) = 6 V
1
µA
EN
High-level EN input voltage
2
V
Low-level EN input voltage
0.7
V
Input current (EN)
–1
1
µA
SEQ
High-level SEQ input voltage
2
V
Low-level SEQ input voltage
0.7
V
SEQ pullup current source
6
µA
MR1/MR2
High-level MR1/MR2 input voltage
2
V
Low-level MR1/MR2 input voltage
0.7
V
MR1/MR2 pullup current source
6
µA
VOUT2
VOUT2 UV comparator – positive-going input
83%
80% VO
86% VO
V
threshold voltage of VOUT1 UV comparator
VO
VOUT2 UV comparator – falling-edge deglitch
VSENSE2 decreasing below threshold
140
µs
Peak output current
2-ms pulse width
375
mA
Discharge transistor current
VOUT2 = 1.5 V
7.5
mA
VOUT1
VOUT1 UV comparator – positive-going input
83%
80% VO
86% VO
V
threshold voltage of VOUT1 UV comparator
VO
0.5%
VOUT1 UV comparator – hysteresis
mV
VO
VOUT1 UV comparator – falling-edge deglitch
VSENSE1 decreasing below threshold
140
µs
IO = 250 mA, VIN1 = 3.2 V, TJ = 25°C
83
Dropout voltage(4)
mV
IO = 250 mA, VIN1 = 3.2 V
140
Peak output current
2-ms pulse width
750
mA
Discharge transistor current
VOUT1 = 1.5 V
7.5
mA
UVLO threshold
2.4
2.65
V
(4)
Input voltage (VIN1 or VIN2) = VO(typ) – 100 mV. For 1.8-V regulators, the dropout voltage is limited by the input voltage range. The 3.3-V
regulator input voltage is to 3.2 V to perform this test.
9
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