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TPS7A3401 Datasheet(PDF) 5 Page - Texas Instruments

Part # TPS7A3401
Description  TPS7A3401 ??0-V, ??00-mA, Low-Noise Negative Voltage Regulator
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS7A3401 Datasheet(HTML) 5 Page - Texas Instruments

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background image
D
D
V
( I
)
OUT
OUT
V
OUT(NOM)
D
D
V
( V )
OUT
IN
V
OUT(NOM)
TPS7A3401
www.ti.com
SBVS163A – JUNE 2011 – REVISED MAY 2015
6.4 Thermal Information
TPS7A3401
THERMAL METRIC(1)
DGN (HVSSOP)
UNIT
8 PINS
RθJA
Junction-to-ambient thermal resistance
63.4
°C/W
RθJC(top)
Junction-to-case(top) thermal resistance
53
°C/W
RθJB
Junction-to-board thermal resistance
37.4
°C/W
ψJT
Junction-to-top characterization parameter
3.7
°C/W
ψJB
Junction-to-board characterization parameter
37.1
°C/W
RθJC(bot)
Junction-to-case(bottom) thermal resistance
13.5
°C/W
(1)
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application
report, SPRA953.
6.5 Electrical Characteristics
At TJ = –40°C to 125°C, |VIN| = |VOUT(nom)| + 1 V or |VIN| = 3 V (whichever is greater), VEN = VIN, IOUT = 1 mA, CIN = 2.2 µF, COUT = 2.2 µF,
and the FB pin tied to OUT, unless otherwise noted.(1)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIN
Input voltage
–20
–3
V
VREF
Internal reference
TJ = 25°C, VFB = VREF
–1.202
–1.184
–1.166
V
Output voltage(2)
|VIN| ≥ |VOUT(nom)| + 1 V
–18
VREF
V
Nominal accuracy
TJ = 25°C, |VIN| = |VOUT(nom)| + 0.5 V
–1.5
1.5
%VOUT
VOUT
|VOUT(nom)| + 1 V ≤ |VIN| ≤ 20 V
Overall accuracy
–2.5
2.5
%VOUT
1 mA
≤ IOUT ≤ 200 mA
Line regulation
TJ = 25°C, |VOUT(nom)| + 1 V ≤ |VIN| ≤ 20 V
0.14
%VOUT
Load regulation
TJ = 25°C, 1 mA ≤ IOUT ≤ 200 mA
0.04
%VOUT
VIN = 95% VOUT(nom), IOUT = 100 mA
216
mV
|VDO|
Dropout voltage
VIN = 95% VOUT(nom), IOUT = 200 mA
500
800
mV
ICL
Current limit
VOUT = 90% VOUT(nom)
200
330
500
mA
IOUT = 0 mA
55
100
μA
IGND
Ground current
IOUT = 100 mA
950
μA
VEN = 0.4 V
1
5
μA
|ISHDN|
Shutdown supply current
VEN = –0.4 V
1
5
μA
IFB
Feedback current(3)
14
100
nA
VEN = |VIN| = |VOUT(nom)| + 1 V
0.48
1
μA
|IEN|
Enable current
VIN = VEN = –20 V
0.51
1
μA
VIN = –20 V, VEN = 15 V
0.50
1
μA
TJ = –40°C to 125°C
2
15
V
VEN(+HI)
Positive enable high-level voltage
TJ = –40°C to 85°C
1.8
15
VEN(+LO)
Positive enable low-level voltage
0
0.4
V
VEN(–HI)
Negative enable high-level voltage
VIN
–2
V
VEN(–LO)
Negative enable low-level voltage
–0.4
0
V
VIN = –3 V, VOUT(nom) = VREF, COUT = 10 μF,
Vn
Output noise voltage
80
μVRMS
BW = 10 Hz to 100 kHz
VIN = –6.2 V, VOUT(nom) = –5 V,
PSRR
Power-supply rejection ratio
50
dB
COUT = 10 μF, f = 1 kHz
Shutdown, temperature increasing
170
TSD
Thermal shutdown temperature
°C
Reset, temperature decreasing
150
(1)
At operating conditions, VIN ≤ 0 V, VOUT(nom) ≤ VREF ≤ 0 V. At regulation, VIN ≤ VOUT(nom) – |VDO|. IOUT > 0 flows from OUT to IN.
(2)
To ensure stability at no load conditions, a current from the feedback resistive network equal to or greater than 5
μA is required.
(3)
IFB > 0 flows into the device.
Copyright © 2011–2015, Texas Instruments Incorporated
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