LED2000
3 A monolithic step-down current source with synchronous rectification-
Active
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 RSENSE voltage 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 package, and standard SO8.
Download
Datasheet
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
Design Resources
TopTechnical Documentation
Product Specifications
| Description | Version | Size |
|---|---|---|
DS9163: 3 A monolithic step-down current source with synchronous rectification
|
3.0 | 1,848 KB |
Related Tools and Software
Related Tools and Software
| Part Number | 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 |
Sample & Buy
Top| Part Number | Marketing Status | Package | Packing Type | Operating Temperature (min) | Operating Temperature (max) | Automotive Grade | Order From ST | Unit Price (US$)* @ 1000 | Distributor Availability | RoHS Compliance Grade | Download Material Declaration** |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LED2000DR | Active | SO-8 | Tape And Reel | -40 | 125 | _ | .65 |
| Ecopack2 | PDF XML | ||||||||||||||||||||||||||
| LED2000PUR | Active | VFDFPN 8 4x4x1.0 | Tape And Reel | -40 | 125 | _ | - | .763 |
| Ecopack2 | PDF XML | |||||||||||||||||||||||||
(*) 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 (**) 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. |
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