Key facts
- Brand
- STMicroelectronics
- Model
- L6902
- Category
- Power Management
- Documents
- 4
- Languages
- EN
- Last added
- 2012-08-10
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ST L6902D handbook
The L6902D is a complete and simple step down switching regulator with adjustable current limit. Based on a voltage mode structure it integrates a current error amplifier to have a constant voltage and constant current control. By means of an on board current sense resistor and the availability of the current sense pins (both compatible to Vcc and for Cs- compatible with GND too) a current limit programming is very simple and accurate (±5%). Moreover constant current control can be used to charge NiMH and NiCd batteries. The device can be used as a standard DC/DC converter with adjustable current limit (set by using the external sense resistor). The internal robust P-Channel DMOS transistor with a typical of 250mΩ assures high efficiency and a minimum dropout even at high output current level. The internal limiting cur
Read onlineSTMicroelectronics L6902 specifications
| Output current | Up to 1 A |
|---|---|
| Input voltage range | 8 V to 36 V |
| Reference voltage | 3.3 V (±2%) |
| Output voltage range | 1.235 V to 34 V |
| Switching frequency | 250 kHz |
| Maximum limiting current | 2.5 A |
| Thermal shutdown threshold | 150°C |
| Package | SO-8 |
All STMicroelectronics L6902 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the typical switching frequency of the L6902?
The internal fixed switching frequency is 250 kHz.
What is the maximum output current?
The device supports up to 1 A output current.
What is the rated output voltage range for this evaluation board?
The board can regulate an output voltage from 1.235V up to 10V.
From: STMicroelectronics EVAL6902D L6902D Evaluation Board Datasheet
What is the maximum input voltage supported by the board?
The input voltage can range from 8V up to 25V.
From: STMicroelectronics EVAL6902D L6902D Evaluation Board Datasheet
What is the maximum output current provided by the L6902D converter?
The converter provides up to 1A output current with an accuracy of 5%.
From: STMicroelectronics AN2129 Dimming of Super High Brightness LEDs with L6902D Application Note
What is the maximum output current of the application board when the dimming pin is grounded?
When the dimming pin is grounded, the maximum output current provided is 350mA.
From: STMicroelectronics AN2129 Dimming of Super High Brightness LEDs with L6902D Application Note