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LP2981A-29DBVR Datasheet(PDF) 4 Page - Texas Instruments

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Part No. LP2981A-29DBVR
Description  ULTRA-LOW DROPOUT REGULATOR WITH SHUTDOWN
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LP2981A-29DBVR Datasheet(HTML) 4 Page - Texas Instruments

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Absolute Maximum Ratings
(1)
Recommended Operating Conditions
LP2981
SLVS521F – JULY 2004 – REVISED AUGUST 2008 ......................................................................................................................................................... www.ti.com
over virtual junction temperature range (unless otherwise noted)
MIN
MAX
UNIT
VIN
Continuous input voltage range(2)
–0.3
16
V
VON/OFF
ON/OFF input voltage range
–0.3
16
V
VOUT
Output voltage range(3)
–0.3
9
V
Internally limited
IOUT
Output current(4)
(short-circuit protected)
θ
JA
Package thermal impedance(4)(5)
206
°C/W
TJ
Operating virtual junction temperature
150
°C
Tstg
Storage temperature range
–65
150
°C
Human-Body Model (HBM)
2000
ESD
Electrostatic discharge protection
V
Machine Model (MM)
200
(1)
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2)
The PNP pass transistor has a parasitic diode connected between the input and output. This diode normally is reverse biased
(VIN > VOUT), but will be forward biased if the output voltage exceeds the input voltage by a diode drop (see Application Information for
more details).
(3)
If load is returned to a negative power supply, the output must be diode clamped to GND.
(4)
Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
(5)
The package thermal impedance is calculated in accordance with JESD 51-7.
MIN
MAX
UNIT
VIN
Supply input voltage
2.2(1)
16
V
VON/OFF
ON/OFF input voltage
0
VIN
V
VIN – VOUT
Input-output differential
0.7
11
V
IOUT
Output current
100
mA
TJ
Virtual junction temperature
–40
125
°C
(1)
Minimum VIN of 2.2 V is needed for proper biasing of LDO control circuitry.
4
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Copyright © 2004–2008, Texas Instruments Incorporated


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