LM2937IMP-3.3

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Series Information for LM2937IMP-3.3 - Texas Instruments

Features

  • feature
    60-V Input Transient Protection
  • feature
    Fully Specified for Operation Over u221240u00b0C to 125u00b0C
  • feature
    Internal Short Circuit and Thermal Overload Protection
  • feature
    Operating Input Voltage Range : 4.75 V to 26 V
  • feature
    Output Current in Excess of 500 mA (400 mA for SOT-223 package)
  • feature
    Output Trimmed for 5% Tolerance Under All Operating Conditions
  • feature
    Reverse Battery Input Protection
  • feature
    Wide Output Capacitor ESR Range, 0.01 u03a9 up to 5 u03a9

Description

IC V REG LDO 0.4A +3.3V SMD 2937
The LM2937-2.5 and LM2937-3.3 are positive voltage regulators capable of supplying up to 500 mA of load current. Both regulators are ideal for converting a common 5-V logic supply, or higher input supply voltage, to the lower 2.5-V and 3.3-V supplies to power very-large-scale integrations (VLSI) ASICs and microcontrollers. Special circuitry has been incorporated to minimize the quiescent current to typically only 10 mA with a full 500-mA load current when the input to output voltage differential is greater than 5 V. The LM2937 requires an output bypass capacitor for stability. As with most regulators utilizing a PNP pass transistor, the ESR of this capacitor remains a critical design parameter, but the LM2937-2.5 and LM29373.3 include special compensation circuitry that relaxes ESR requirements. The LM2937 is stable for all ESR ratings less than 5 Ω. This allows the use of low ESR chip capacitors. The regulators are also suited for automotive applications, with built in protection from reverse battery connections, two-battery jumps and up to +60 V/−50 V load dump transients. Familiar regulator features such as short circuit and thermal shutdown protection are also built in.

Specifications

Output Type:
Fixed
Input Voltage Min:
0V
Input Voltage Max:
26V
Fixed Output Voltage Nom.:
3.3V
Adjustable Output Voltage Min:
-
Adjustable Output Voltage Max:
-
Output Current:
500mA
Dropout Voltage Vdo:
500mV
LDO Regulator Case Style:
SOT-223
No. of Pins:
3Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
3.3V 500mA LDO Voltage Regulators
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Accuracy %:
5%
Base Number:
2937
Device Marking:
LS69B
IC Generic Number:
2937
IC Package (Case style):
SOT-223
Input Voltage:
26V
No. of Outputs:
1Outputs
Operating Temperature Range:
-40°C to +85°C
Operating Voltage Tolerance +:
5%
Output Current Max:
0.4A
Output Voltage Nom.:
3.3V
Primary Input Voltage:
8.3V
Supply Voltage Max:
26V
Supply Voltage Min:
4.75V
Voltage Regulator Type:
Positive Fixed LDO

Alternate Descriptions

Avnet Europe

LDO Regulator Pos 3.3V 0.4A 4-Pin(3+Tab) SOT-223 T/R

Avnet Europe product