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LM2937ET-15 +BOM

Linear Voltage Regulator IC Positive Fixed 1 Output 500mA TO-220-3

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LM2937ET-15
Datasheet:

LM2937ET-15 Datasheet (PDF)
Output Options:

Fixed Output
Iout (max) (A):

0.5
Vin (max) (V):

26
Vin (min) (V):

6
EDA/CAD Models:

Request Free CAD Models for LM2937ET-15

LM2937ET-15 General Description

The LM2937 is a positive voltage regulator capable of supplying up to 500 mA of load current. The use of a PNP power transistor provides a low dropout voltage characteristic. With a load current of 500 mA the minimum input to output voltage differential required for the output to remain in regulation is typically 0.5 V (1-V ensured maximum over the full operating temperature range). 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 3 V.

The LM2937 requires an output bypass capacitor for stability. As with most low dropout regulators, the ESR of this capacitor remains a critical design parameter, but the LM2937 includes special compensation circuitry that relaxes ESR requirements. The device is stable for all ESR below 3 Ω. This allows the use of low ESR chip capacitors.

Ideally suited for automotive applications, the LM2937 will protect itself and any load circuitry 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.

Key Features

Fully Specified for Operation Over −40°C
to 125°C
Output Current in Excess of 500 mA
Output Trimmed for 5% Tolerance Under all Operating
Conditions
Typical Dropout Voltage of 0.5 V at Full Rated Load
Current
Wide Output Capacitor ESR Range, up to 3 Ω
Internal Short Circuit and Thermal Overload Protection
Reverse Battery Protection
60-V Input Transient Protection
Mirror Image Insertion Protection

Application

Battery Powered Consumer Products
Handheld Instruments
Automotive

Specifications

Output options	Fixed Output	Iout (max) (A)	0.5
Vin (max) (V)	26	Vin (min) (V)	6
Vout (max) (V)	15	Vout (min) (V)	5
Fixed output options (V)	2.5, 3.3, 5, 8, 10, 12, 15	Noise (µVrms)	150
Iq (typ) (mA)	2	Thermal resistance θJA (°C/W)	42
Rating	Catalog	Load capacitance (min) (µF)	10
Regulated outputs (#)	1	Accuracy (%)	5
PSRR at 100 KHz (dB)	57	Dropout voltage (Vdo) (typ) (mV)	500
Operating temperature range (°C)	-40 to 125, -40 to 85	Pin Count	3
Released Date	Jan 11, 2017	Last Modified Date	Mar 7, 2023 4:10 PM UTC
Package/Case	TO-220

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Ratings and Reviews

L**n 05/28/2020

Everything is fine, everything is like a description! Thank you seller!

E**a 04/22/2020

Shipping is not fast. Everything came intact. Works. Fast test from the switching power supply 14v1a, speakers 16 cm, 40 w rated. Play clean. High dry. The bottoms are fine. The speakers swing. At a volume above the average picture is lubricated in a low-profile register. In principle, on the speaker without the case, the picture is clear. It is heated quickly and significantly. In general, excellent, for 100 r. Without delivery.

L**s 04/07/2020

I love this, I expected a shitty whiny almost useless bt module and it completely blew me away.Soldering it to the breakout board was an easy job and after connecting it to my stereo and powering it on it took a while to pair but after pairing it only beeped /No lady is telling you "the device is reedy to pehr" no voice, this module has just beeps in its memory and I appreciate it.It produces clear sound and it doesnt make any noise when you are not playing music. ITS SILENT ! no interference.for this kind of money I'd recommend it to anyone