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TPS71H33Q データシート(PDF) 6 Page - Texas Instruments

部品番号 TPS71H33Q
部品情報  LOW-DROPOUT VOLTAGE REGULATORS
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TPS71H33Q データシート(HTML) 6 Page - Texas Instruments

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TPS71H01Q, TPS71H33Q, TPS71H48Q, TPS71H50Q
LOW DROPOUT VOLTAGE REGULATORS
SLVS152B − NOVEMBER 1996 − REVISED AUGUST 2002
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
MIN
MAX
UNIT
TPS71H01Q
2.5
10
Input voltage, VI†
TPS71H33Q
3.77
10
V
Input voltage, VI†
TPS71H48Q
5.2
10
V
TPS71H50Q
5.33
10
High-level input voltage at EN, VIH
2
V
Low-level input voltage at EN, VIL
0.5
V
Output current range, IO
0
500
mA
Operating virtual junction temperature range, TJ
−40
125
°C
† Minimum input voltage defined in the recommended operating conditions is the maximum specified output voltage plus dropout voltage at the
maximum specified load range. Since dropout voltage is a function of output current, the usable range can be extended for lighter loads. To
calculate the minimum input voltage for your maximum output current, use the following equation: VI(min) = VO(max) + VDO(max load)
Because the TPS71H01 is programmable, rDS(on) should be used to calculate VDO before applying the above equation. The equation for
calculating VDO from rDS(on) is given in Note 2 in the electrical characteristics table. The minimum value of 2.5 V is the absolute lower limit for
the recommended input voltage range for the TPS71H01.
electrical characteristics at IO = 10 mA, EN = 0 V, CO = 4.7 µF/CSR= 1 Ω, SENSE/FB shorted to OUT
(unless otherwise noted)
PARAMETER
TEST CONDITIONS§
TJ
TPS71H01Q, TPS71H33Q
TPS71H48Q, TPS71H50Q
UNIT
PARAMETER
TEST CONDITIONS§
TJ
MIN
TYP
MAX
UNIT
Ground current (active mode)
EN
≤ 0.5 V,
VI = VO + 1 V,
25
°C
285
350
A
Ground current (active mode)
EN
≤ 0.5 V,
VI = VO + 1 V,
0 mA
≤ IO ≤ 500 mA
−40
°C to 125°C
460
µA
Input current (standby mode)
EN = VI,
2.7 V
≤ VI ≤ 10 V
25
°C
0.5
A
Input current (standby mode)
EN = VI,
2.7 V
≤ VI ≤ 10 V
−40
°C to 125°C
2
µA
Output current limit
VO = 0,
VI = 10 V
25
°C
1.2
2
A
Output current limit
VO = 0,
VI = 10 V
−40
°C to 125°C
2
A
Pass-element leakage current in standby
EN = VI,
2.7 V
≤ VI ≤ 10 V
25
°C
0.5
A
Pass-element leakage current in standby
mode
EN = VI,
2.7 V
≤ VI ≤ 10 V
−40
°C to 125°C
1
µA
PG leakage current
Normal operation,
VPG = 10 V
25
°C
0.02
0.5
A
PG leakage current
Normal operation,
VPG = 10 V
−40
°C to 125°C
0.5
µA
Output voltage temperature coefficient
−40
°C to 125°C
61
75
ppm/
°C
Thermal shutdown junction temperature
165
°C
EN logic high (standby mode)
2.5 V
≤ VI ≤ 6 V
−40
°C to 125°C
2
V
EN logic high (standby mode)
6 V
≤ VI ≤ 10 V
−40
°C to 125°C
2.7
V
EN logic low (active mode)
2.7 V
≤ VI ≤ 10 V
25
°C
0.5
V
EN logic low (active mode)
2.7 V
≤ VI ≤ 10 V
−40
°C to 125°C
0.5
V
EN hysteresis voltage
25
°C
50
mV
EN input current
0 V
≤ VI ≤ 10 V
25
°C
− 0.5
0.5
A
EN input current
0 V
≤ VI ≤ 10 V
−40
°C to 125°C
− 0.5
0.5
µA
Minimum VI for active pass element
25
°C
2.05
2.5
V
Minimum VI for active pass element
−40
°C to 125°C
2.5
V
Minimum VI for valid PG
IPG = 300 µA
IPG = 300 µA
25
°C
1.06
1.5
V
Minimum VI for valid PG
IPG = 300 µA
IPG = 300 µA
−40
°C to 125°C
1.9
V
‡ CSR (compensation series resistance) refers to the total series resistance, including the equivalent series resistance (ESR) of the capacitor, any
series resistance added externally, and PWB trace resistance to CO.
§ Pulse-testing techniques are used to maintain virtual junction temperature as close as possible to ambient temperature; thermal effects must
be taken into account separately.


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