LP2953_15 Datasheet, PDF (4/41 Pages) Texas Instruments – LP295x Adjustable Micropower Low-Dropout Voltage Regulators

LP2952-N, LP2952A, LP2953, LP2953A
SNVS095F – MAY 2004 – REVISED MARCH 2015
NAME
COMPIN
COMPOUT
ERROR
FEEDBACK
GROUND
IN
NC
OUT
REFERENCE
SENSE
SHUTDOWN
VTAP
PIN
SOIC(D)
10
11
6
14
1, 8, 9, 16
15
2, 7
3
12
4
5
13
PDIP(NBG)
15
14
10
2
4, 5, 12, 13
3
7, 11
6
16
8
9
1
Pin Functions LP2953
I/O
DESCRIPTION
I
Auxiliary comparator input
O
Auxiliary comparator output
O
Error signal output
I
Error amplifier noninverting input
-
Ground
I
Regulator power input
-
NC
O
Regulated output voltage
O
Internal reference voltage output
I
Feedback voltage sense input
I
Shutdown input
I
Internal resistor divider input
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6 Specifications
6.1 Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)⁽¹⁾
Power dissipation⁽²⁾
Input supply voltage
FEEDBACK input voltage⁽³⁾
Comparator input voltage⁽⁴⁾
SHUTDOWN input voltage⁽⁴⁾
Comparator output voltage⁽⁴⁾
Maximum junction temperature
Storage temperature, T_stg
MIN
MAX
Internally Limited
−20
30
−0.3
5
−0.3
30
−0.3
30
−0.3
30
150
−65
150
UNIT
V
V
V
V
V
°C
°C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) The maximum allowable power dissipation is a function of the maximum junction temperature, T_J(MAX), the junction-to-ambient thermal
resistance, R_θJA, and the ambient temperature, T_A. The maximum allowable power dissipation at any ambient temperature is calculated
using the equation for P_(MAX): P_(MAX) = (T_J(MAX) – T_A) / R_θJA.
Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal
shutdown. See Power Supply Recommendations for additional information on heatsinking and thermal resistance.
(3) When used in dual-supply systems where the regulator load is returned to a negative supply, the output voltage must be diode-clamped
to ground.
(4) May exceed the input supply voltage.
6.2 ESD Ratings
V_(ESD)
Electrostatic
discharge
Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins⁽¹⁾
VALUE
±2000
(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
UNIT
V
6.3 Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
Operating junction temperature
Input supply voltage
MIN
MAX UNIT
−40
125
°C
2.3
30
V
4
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