LM2937ET-2.5/NOPB National Semiconductor, LM2937ET-2.5/NOPB Datasheet - Page 4

• Manufacturer Part Number: LM2937ET-2.5/NOPB
• Description: IC REGULATOR LDO TO220-3
• Manufacturer: National Semiconductor

Specifications of LM2937ET-2.5/NOPB

• Regulator Topology: Positive Fixed
• Voltage - Output: 2.5V
• 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: Through Hole
• Package / Case: TO-220-3 (Straight Leads)
• Primary Input Voltage: 7.5V
• Dropout Voltage Vdo: 500mV
• No. Of Outputs: 1
• No. Of Pins: 3
• Output Current: 0.5A
• Operating Temperature Range: -40°C To +125°C
• Filter Terminals: Through Hole
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Other names: *LM2937ET-2.5; *LM2937ET-2.5/NOPB; LM2937ET-2.5

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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