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LINEAR TECHNOLOGY  LT1937ES5#TRMPBF  Led Driver, 1 Output, Boost (Step Up), 2.5V-10V in, 1.2MHz switch, 36V/15mA out, TSOT-23-5

LINEAR TECHNOLOGY LT1937ES5#TRMPBF
Manufacturer Part No:
LT1937ES5#TRMPBF
Order Code:
1663813
Technical Datasheet:
See all Technical Docs

Image is for illustrative purposes only. Please refer to product description.

Product Overview

The LT1937ES5#TRMPBF is a step-up DC/DC Converter specifically designed to drive white LEDs with a constant current. The device can drive two, three or four LEDs in series from a Li-Ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The LT1937 switches at 1.2MHz, allowing the use of tiny external components. The output capacitor can be as small as 0.22µF, saving space. A low 95mV feedback voltage minimizes power loss in the current setting resistor for better efficiency.
  • Inherently matched LED current
  • 84% Typical High efficiency
  • 36V Rugged bipolar switch
  • Requires only 0.22µF output capacitor

Product Information

Device Topology:
Boost (Step Up)
No. of Outputs:
1Outputs
Output Current:
15mA
Output Voltage:
36V
Driver Case Style:
TSOT-23
No. of Pins:
5Pins
Input Voltage Min:
2.5V
Input Voltage Max:
10V
Switching Frequency:
1.2MHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Consumer Electronics
  • Computers & Computer Peripherals
  • Portable Devices
  • Communications & Networking
  • Audio

Legislation and Environmental

Country of Origin:
Malaysia

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000117

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