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TPS7A20 データシート(PDF) 6 Page - Texas Instruments

部品番号 TPS7A20
部品情報  TPS7A20 300-mA, Ultra-Low-Noise, Low-IQ, High PSRR LDO
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

TPS7A20 データシート(HTML) 6 Page - Texas Instruments

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6
TPS7A20
SBVS338A – MARCH 2020 – REVISED MARCH 2020
www.ti.com
Product Folder Links: TPS7A20
Submit Documentation Feedback
Copyright © 2020, Texas Instruments Incorporated
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report.
(2)
Preview Package
6.4 Thermal Information
THERMAL METRIC(1)
TPS7A20
UNIT
DBV (2)
(SOT-23)
DQN
(X2SON)
YWD(2)
(DSBGA)
5 PINS
4 PINS
4 PINS
RθJA
Junction-to-ambient thermal resistance
TBD
179.1
TBD
°C/W
RθJC(top)
Junction-to-case (top) thermal resistance
TBD
137.6
TBD
°C/W
RθJB
Junction-to-board thermal resistance
TBD
116.3
TBD
°C/W
ψJT
Junction-to-top characterization parameter
TBD
6.1
TBD
°C/W
ψJB
Junction-to-board characterization parameter
TBD
116.3
TBD
°C/W
RθJC(bot)
Junction-to-case (bottom) thermal resistance
TBD
112.3
TBD
°C/W
6.5 Electrical Characteristics
at operating temperature range (TJ = –40℃ to +125℃), VIN = VOUT(NOM) + 0.3 V or 1.6V, whichever is greater, VEN = 1.0 V,
IOUT = 1 mA, CIN = 1 µF, COUT = 1 µF (unless otherwise noted); all typical values are at TJ = 25℃
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ΔVOUT
Output voltage tolerance
VIN = (VOUT(NOM) + 0.3 V) to 6.0 V,
IOUT = 1 mA to 300 mA,
VOUT ≥ 1.5 V
–1.5
1.5
%
VIN = (VOUT(NOM) + 0.5 V) to 6.0 V,
IOUT = 1 mA to 300 mA
VOUT < 1.5 V
–30
30
mV
ΔVOUT
(ΔVIN)
Line regulation
VIN = (VOUT(NOM) + 0.3 V) to 6.0 V,
IOUT = 1 mA
0.03
%/V
ΔVOUT(ΔIO
UT)
Load regulation
IOUT = 1 mA to 300 mA
0.003
%/mA
IGND
Ground current
VEN = VIN, VIN = 6.0
V, IOUT = 0 mA
TJ = 25°C
6.5
8
µA
TJ = –40°C to 85°C
10
TJ = –40°C to 125°C
20
VEN = VIN, VIN = 6.0 V, IOUT = 300 mA
2000
ISHTDWN
Shutdown current
VEN = 0 V (disabled), VIN = 6.0 V, TJ = 25°C
0.15
0.5
µA
IGND(DO)
Ground current in dropout
VIN ≤ VOUT(NOM) , IOUT = 0 mA
6.5
20
µA
VDO
Dropout voltage
IOUT = 300 mA,
VOUT = 95% x
VOUT(NOM)
0.8 V
≤ VOUT < 1.0 V
690
mV
1.0 V
≤ VOUT < 1.2 V
490
1.2 V
≤ VOUT < 1.5 V
355
1.5 V
≤ VOUT < 2.5 V
240
2.5 V
≤ VOUT < 3.3 V
140
3.3 V
≤ VOUT ≤ 5.5 V
140
ICL
Output current limit
VOUT = 0.9 x VOUT(NOM), VIN = VOUT(NOM) + VDO
360
520
730
mA
ISC
Short-circuit current limit
VOUT = 0 V
160
mA
PSRR
Power-supply rejection ratio
IOUT = 20 mA,
VIN = VOUT + 1.0 V
f = 1 kHz
85
dB
f = 10 kHz
73
dB
f = 100 kHz
70
dB
f = 1 MHz
49
dB
PSRR
Power-supply rejection ratio
IOUT = 300 mA,
VIN = VOUT + 1.0 V
f = 1 kHz
85
dB
f = 10 kHz
73
dB
f = 100 kHz
56
dB
f = 1 MHz
48
dB
VN
Output noise voltage
BW = 10 Hz to 100
kHz
VOUT = 2.8V
IOUT = 300 mA
6
µVRMS
IOUT = 1 mA
10
RPULLDOWN
Output automatic discharge
pulldown resistance
VEN < VEN(LOW) (output disabled)
150
Ω


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