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L6984A Datasheet

Part Number L6984A
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description synchronous step-down switching regulator
Datasheet L6984A DatasheetL6984A Datasheet (PDF)

L6984 36 V, 400 mA synchronous step-down switching regulator Datasheet - production data VFDFPN10 4 x 4 x 1.0 mm Application  Battery powered applications (LCM)  Sensors (LNM)  E- metering VDFPN10 3 x 3 x 1.0 mm Features  400 mA DC output current  4.5 V to 36 V operating input voltage  Synchronous rectification  Low consumption mode or low noise mode  75 µA IQ at light load (LCM VOUT = 3.3 V)  13 µA IQ-SHTDWN  Adjustable fSW (250 kHz - 600 kHz)  Output voltage adjustable from 0.9.

  L6984A   L6984A






Part Number L6984
Manufacturers STMicroelectronics
Logo STMicroelectronics
Description synchronous step-down switching regulator
Datasheet L6984A DatasheetL6984 Datasheet (PDF)

L6984 36 V, 400 mA synchronous step-down switching regulator Datasheet - production data VFDFPN10 4 x 4 x 1.0 mm Application  Battery powered applications (LCM)  Sensors (LNM)  E- metering VDFPN10 3 x 3 x 1.0 mm Features  400 mA DC output current  4.5 V to 36 V operating input voltage  Synchronous rectification  Low consumption mode or low noise mode  75 µA IQ at light load (LCM VOUT = 3.3 V)  13 µA IQ-SHTDWN  Adjustable fSW (250 kHz - 600 kHz)  Output voltage adjustable from 0.9.

  L6984A   L6984A







synchronous step-down switching regulator

L6984 36 V, 400 mA synchronous step-down switching regulator Datasheet - production data VFDFPN10 4 x 4 x 1.0 mm Application  Battery powered applications (LCM)  Sensors (LNM)  E- metering VDFPN10 3 x 3 x 1.0 mm Features  400 mA DC output current  4.5 V to 36 V operating input voltage  Synchronous rectification  Low consumption mode or low noise mode  75 µA IQ at light load (LCM VOUT = 3.3 V)  13 µA IQ-SHTDWN  Adjustable fSW (250 kHz - 600 kHz)  Output voltage adjustable from 0.9 V  No resistor divider required for 3.3 V VOUT  VBIAS maximizes efficiency at light load  350 mA valley current limit  Constant on-time control scheme  PGOOD open collector  Thermal shutdown Description The L6984 is a step-down monolithic switching regulator able to deliver up to 400 mA DC. The output voltage adjustability ranges from 0.9 V. The fixed 3.3 V 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/sensors. 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 t.


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