L6984TR - ST Microelectronics

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

Part No

L6984TR
Manufacturer

ST Microelectronics
ChipWorker Part#

CW31835428
Category

DC to DC Converter
Package

VDFN-10
Description

Conv DC-DC 4.5V to 36V Step Down Single-Out 0.9V 0.35A 10Pin VFDFPN EP T/R
Documentation

Datasheet

L6984TR Global Supplier

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L6984TR Specifications

Attribute	Attribute Value

Part Number	L6984TR
Manufacturer	ST Microelectronics
ChipWorker Part#	CW31835428
Category	DC to DC Converter
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	10 Pin
Case/Package	VDFN-10
Number of Outputs	1 Output
Output Voltage	0.9 V
Output Current	400 mA
Number of Positions	10 Position
Switching Frequency	600 kHz
Input Voltage (Max)	36 V
Input Voltage (Min)	4.5 V
Output Voltage (Max)	28 V
Output Voltage (Min)	900 mV
Operating Temperature (Max)	150 ℃
Input Voltage	36 V
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Operating Temperature	-40℃ ~ 150℃ (TJ)
Product Lifecycle Status	Active
Packaging	Each
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

Product Description

The L6984TR is a step-down monolithic Switching Regulator able to deliver up to 400mA DC. The output voltage adjustability ranges from 0.9V. The fixed 3.3V VOUT requires no external resistor divider. The low consumption mode (LCM) is designed for applications active during car parking, so it maximizes the efficiency at light load with controlled output voltage ripple. The low noise mode (LNM) makes the switching frequency almost constant over the load current range, serving low noise application specification like car audio. The PGOOD open collector output can implement output voltage sequencing during the power-up phase. The synchronous rectification, designed for high efficiency at medium - heavy load and the high switching frequency capability make the size of the application compact. Pulse-by-pulse current sensing on low-side power element implements an effective constant current protection.
Synchronous rectification
Low consumption mode or low noise mode
VBIAS maximizes efficiency at light load
Constant on-time control scheme
PGOOD open collector
Thermal shutdown
No resistor divider required for 3.3V VOUT
350mA Valley current limit
100µA Quiescent current at light load (LCM VOUT=3.3V)
13µA Quiescent current in shutdown operation

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