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The LED2000 is an 850 kHz fixed switching frequency monolithic step-down DC-DC converter designed to operate as precise constant current source with an adjustable current capability up to 3 A DC. The embedded PWM dimming circuitry features LED brightness control. The regulated output current is set connecting a sensing resistor to the feedback pin. The embedded synchronous rectification and the 100 mV typical RSENSEvoltage drop enhance the efficiency performance. The size of the overall application is minimized thanks to the high switching frequency and ceramic output capacitor compatibility. The device is fully protected against thermal overheating, overcurrent and output short-circuit. The LED2000 is available in VFQFPN 4 mm x 4 mm 8-lead, and standard SO8 package.
Key Features
- 3.0 V to 18 V operating input voltage range
- 850 kHz fixed switching frequency
- 100 mV typ. current sense voltage drop
- PWM dimming
- ± 7% output current accuracy
- Synchronous rectification
- 95 mΩ HS / 69 mΩ LS typical RDS(on)
- Peak current mode architecture
- Embedded compensation network
- Internal current limiting
- Ceramic output capacitor compliant
- Thermal shutdown
Sample & Buy
| Part Number | Marketing Status | Quantity | Budgetary Price (US$)* | Package | Packing Type | Temperature (°C) | ECCN (US) | Country of Origin | More info | Order from Distributors | Order from ST | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| LED2000DR | Active | 1000 | 0.775 | SO-8 | Tape And Reel | -40 | 125 | EAR99 | CHINA | Check Availability | Get sample | |
| LED2000PUR | Active | 1000 | 0.91 | VFDFPN 8 4x4x1.0 | Tape And Reel | -40 | 125 | EAR99 | MALAYSIA | Check Availability | Get sample | |
(*) 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
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Evaluation Tools
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Picture Part number Manufacturer Description 
STEVAL-ILL051V1 -- 3 A HB LED driver with dimming function based on the LED2000 in an SO-8 Batwing package 
STEVAL-ILL051V2 -- 3 A HB LED driver with dimming function based on the LED2000 in a QFN package Part Number3 A HB LED driver with dimming function based on the LED2000 in an SO-8 Batwing package
3 A HB LED driver with dimming function based on the LED2000 in a QFN package
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| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| LED2000DR | Active | SO-8 | Industrial | Ecopack2 | |
| LED2000PUR | Active | VFDFPN 8 4x4x1.0 | Industrial | 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.
