-
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 the application compact. Pulse-by-pulse current sensing on low-side power element implements an effective constant current protection.
主要特性
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
样片和购买
| 型号 | Package | Packing Type | Marketing Status | Budgetary Price (US$)* | Quantity | ECCN (US) | Country of Origin | Order from Distributors | Order from ST |
|---|---|---|---|---|---|---|---|---|---|
| L6984ATR | DFN10 3X3 | Tape And Reel |
Active
|
0.813 | 1000 | EAR99 | PHILIPPINES | Check Availability | Buy direct |
| L6984TR | VFDFPN 4X4X1.0 10L PITCH 0.50 | Tape And Reel |
Active
|
0.844 | 1000 | EAR99 | PHILIPPINES | Check Availability | Buy direct |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
精选 视频
评估工具
-
-
Picture Part number 制造商 Description 
STEVAL-ISA159V1 ST High efficiency synchronous step-down regulator based on the L6984 型号High efficiency synchronous step-down regulator based on the L6984
-
| 型号 | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L6984ATR |
Active
|
DFN10 3X3 | 工业 | Ecopack2 | |
| L6984TR |
Active
|
VFDFPN 4X4X1.0 10L PITCH 0.50 | 工业 | Ecopack2 |
|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
