LM2937ES-3.3/NOPB National Semiconductor, LM2937ES-3.3/NOPB Datasheet - Page 4

IC REGULATOR LDO TO-263

LM2937ES-3.3/NOPB

Manufacturer Part Number
LM2937ES-3.3/NOPB
Description
IC REGULATOR LDO TO-263
Manufacturer
National Semiconductor
Datasheet

Specifications of LM2937ES-3.3/NOPB

Regulator Topology
Positive Fixed
Voltage - Output
3.3V
Voltage - Input
Up to 26V
Voltage - Dropout (typical)
0.11V @ 50mA
Number Of Regulators
1
Current - Output
500mA
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
TO-263-3, D²Pak (3 leads + Tab), TO-263AA
Number Of Outputs
1
Polarity
Positive
Input Voltage Max
26 V
Output Voltage
3.3 V
Output Type
Fixed
Output Current
0.5 A
Line Regulation
9.9 mV
Load Regulation
3.3 mV
Voltage Regulation Accuracy
+/- 5 %
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Lead Free Status / Rohs Status
 Details
Other names
*LM2937ES-3.3
*LM2937ES-3.3/NOPB
LM2937ES-3.3

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Electrical Characteristics
Note 5: The minimum input voltage required for proper biasing of these regulators is 4.75V. Below this level the outputs will fall out of regulation. This effect is not
the normal dropout characteristic where the output falls out of regulation due to the PNP pass transistor entering saturation. If a value for worst case effective input
to output dropout voltage is required in a specification, the values should be 2.37V maximum for the LM2937-2.5 and 1.6V maximum for the LM2937-3.3.
Typical Performance Characteristics
Quiescent Current vs
Output Current (2.5V)
Quiescent Current vs
Input Voltage (2.5V)
Temperature (2.5V)
Output Voltage vs
(Note 4) (Continued)
10011302
10011306
10011304
4
Quiescent Current vs
Output Current (3.3V)
Quiescent Current vs
Input Voltage (3.3V)
Temperature (3.3V)
Output Voltage vs
10011303
10011307
10011305