LP2950-N
,
LP2951-N
SNVS764O –JANUARY 2000–REVISED DECEMBER 2014
www.ti.com
7.6 Electrical Characteristics
over operating free-air temperature range (unless otherwise noted)(1)
LP2950AC-XX LP2950C-XX
LP2951(2) LP2951AC-XX LP2951C-XX
PARAMETER TEST CONDITIONS(1) UNIT
MIN TYP MAX MIN TYP MAX MIN TYP MAX
3-V VERSIONS(3)
TJ= 25°C 2.985 3 3.015 2.985 3 3.015 2.970 3 3.030 V(4)
−25°C ≤TJ≤85°C 2.970 3 3.030 2.955 3 3.045 V(5)
Output voltage 2.964 3 3.036 V(4)
Full operating
temperature range 2.964 3 3.036 2.940 3 3.060 V(5)
100 μA≤IL≤100 mA, 2.955 3 3.045 V(4)
Output voltage 100 μA≤IL≤100 mA, 2.958 3 3.042 2.928 3 3.072 V(5)
TJ≤TJMAX
3.3-V VERSIONS(3)
TJ= 25°C 3.284 3.3 3.317 3.284 3.3 3.317 3.267 3.3 3.333 V(4)
−25°C ≤TJ≤85°C 3.3 3.267 3.3 3.333 3.251 3.3 3.350 V(5)
Output voltage 3.260 3.3 3.340 V(4)
Full operating
temperature range 3.260 3.3 3.340 3.234 3.3 3.366 V(5)
3.251 3.3 3.350 V(4)
100 μA≤IL≤100 mA, TJ
Output voltage ≤TJMAX 3.254 3.3 3.346 3.221 3.3 3.379 V(5)
5-V VERSIONS(3)
TJ= 25°C 4.975 5 5.025 4.975 5 5.025 4.95 5 5.05 V(4)
−25°C ≤TJ≤85°C 5 4.95 5 5.05 4.925 5 5.075 V(5)
Output voltage 4.94 5 5.06 V(4)
Full operating
temperature range 4.94 5 5.06 4.9 5 5.1 V(5)
4.925 5 5.075 V(4)
100 μA≤IL≤100 mA, TJ
Output voltage ≤TJMAX 4.925 5 5.075 4.88 5 5.12 V(5)
ALL VOLTAGE OPTIONS
Output voltage 20 120 ppm/°C(4)
See(6), –40°C ≤TJ≤
temperature 125°C 20 100 50 150 ppm/°C(5)
coefficient (VONOM + 1)V ≤Vin ≤30 0.03 0.1 0.03 0.11 0.04 0.2 % (4)
V(8)
Line regulation(7) 0.03 0.5 % (4)
(VONOM + 1)V ≤Vin ≤30
V(8), –40°C ≤TJ≤125°C 0.03 0.2 0.04 0.4 % (5)
100 μA≤IL≤100 mA 0.04 0.1 0.04 0.1 0.1 0.2 % (4)
Load regulation(7) 0.04 0.3 % (4)
100 μA≤IL≤100 mA,
–40°C ≤TJ≤125°C 0.04 0.2 0.1 0.3 % (5)
(1) Unless otherwise noted, all limits apply for TA= TJ= 25°C as well as specified for VIN = (VONOM + 1)V, IL= 100 μA and CL= 1 μF for 5-
V versions and 2.2 μF for 3-V and 3.3-V versions. Additional conditions for the 8-pin versions are FEEDBACK tied to VTAP, OUTPUT
tied to SENSE, and VSHUTDOWN ≤0.8 V.
(2) A Military RETS specification is available on request.
(3) All LP2950 devices have the nominal output voltage coded as the last two digits of the part number. In the LP2951 products, the 3-V
and 3.3-V versions are designated by the last two digits, but the 5-V version is denoted with no code at this location of the part number
(refer to Mechanical, Packaging, and Orderable Information).
(4) Ensured and 100% production tested.
(5) Ensured but not 100% production tested. These limits are not used to calculate outgoing AQL levels.
(6) Output or reference voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range.
(7) Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
heating effects are covered under the specification for thermal regulation.
(8) Line regulation for the LP2951-N is tested at 150°C for IL= 1 mA. For IL= 100 μA and TJ= 125°C, line regulation is specified by design
to 0.2%. See Typical Characteristics for line regulation versus temperature and load current.
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