L6902D - ST Microelectronics

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

L6902D
Manufacturer

ST Microelectronics
ChipWorker Part#

CW10000793
Category

DC to DC Converter
RoHS

Lead free / RoHS Compliant
Description

Conv DC-DC 8V to 36V Step Down Single-Out 1.235V to 34V 1A 8Pin SO N Tube
Documentation

Datasheet

L6902D Global Supplier

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L6902D Specifications

Attribute	Attribute Value

Part Number	L6902D
Manufacturer	ST Microelectronics
ChipWorker Part#	CW10000793
Category	DC to DC Converter
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	SOIC-8
Frequency	250 kHz
Operating Voltage	8V ~ 36V
Number of Outputs	1 Output
Output Voltage	1.235V ~ 34V
Output Current	1 A
Number of Channels	1 Channel
Number of Positions	8 Position
Switching Frequency	275 kHz
Topology	Buck
Input Voltage (Max)	36 V
Input Voltage (Min)	8 V
Output Voltage (Max)	34 V
Output Voltage (Min)	1.235 V
Output Current (Max)	1 A
Operating Temperature (Max)	150 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	8 V
Input Voltage	8V ~ 36V
	expand all
Size-Length	5 mm
Size-Width	4 mm
Size-Height	1.25 mm
Operating Temperature	-40℃ ~ 150℃
Product Lifecycle Status	Active
Packaging	Cut Tape (CT)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

Product Description

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 250mR assures high efficiency and a minimum dropout even at high output current level. The internal limiting current (latched function) of typical value of 2.5A protects the device from accidental output short-circuit avoiding dangerous loads damage.
Voltage feed-forward
Zero load current operation
Adjustable current limit
Protection against feedback disconnection
Thermal shutdown
Overvoltage and frequency foldback overcurrent protection
Precise 3.3V (±2%) reference voltage
5% Output current accuracy

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