STMicroelectronics 38 V, 1.5 A synchronous step-down switching regulator for L6981 for Power Tools
- RS Stock No.:
- 218-4821
- Mfr. Part No.:
- STEVAL-L6981NDR
- Manufacturer:
- STMicroelectronics
6 In stock for delivery within 2 working days
Added
Price Each
€36.96
(exc. VAT)
€45.46
(inc. VAT)
| Units | Per unit |
| 1 - 1 | €36.96 |
| 2 - 4 | €35.96 |
| 5 - 9 | €35.01 |
| 10 - 24 | €34.12 |
| 25 + | €33.27 |
- RS Stock No.:
- 218-4821
- Mfr. Part No.:
- STEVAL-L6981NDR
- Manufacturer:
- STMicroelectronics
Technical data sheets
Legislation and Compliance
Product Details
38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981NDR for industrial power systems
STMicroelectronics STEVAL-L6981NDR is based on the L6981NDR synchronous monolithic step-down regulator delivering up to 1.5 A DC.
Its wide input voltage range makes the solution suitable for a broad range of applications.
The device implements peak current mode architecture in a SO 8L package with internal compensation to minimize design complexity and size.
The L6981 is available in low consumption mode (LCM) and low noise mode (LNM) versions.
Its wide input voltage range makes the solution suitable for a broad range of applications.
The device implements peak current mode architecture in a SO 8L package with internal compensation to minimize design complexity and size.
The L6981 is available in low consumption mode (LCM) and low noise mode (LNM) versions.
LCM maximizes efficiency at light-load with controlled output voltage ripple, making the device extremely suitable for battery-powered applications.
LNM makes the switching frequency constant and minimizes the output voltage ripple overload current range, meeting the specification for noise sensitive applications.
The EN pin manages the enable/disable function. The typical shutdown current is 2 μA when disabled. When the EN pin is pulled up, the device is enabled and the internal 1.3 ms soft-start takes place.
Pulse-by-pulse current sensing on both power elements implements effective constant current protection while thermal shutdown prevents thermal run-away.
LNM makes the switching frequency constant and minimizes the output voltage ripple overload current range, meeting the specification for noise sensitive applications.
The EN pin manages the enable/disable function. The typical shutdown current is 2 μA when disabled. When the EN pin is pulled up, the device is enabled and the internal 1.3 ms soft-start takes place.
Pulse-by-pulse current sensing on both power elements implements effective constant current protection while thermal shutdown prevents thermal run-away.
- 3.5 V to 38 V operating input voltage
- Output voltage from 0.85 V to VIN
- 3.3 V and 5 V fixed output voltage versions
- 1.5 A DC output current
- 17 μA operating quiescent current (fixed Vout part numbers)
- Internal compensation network
- Low noise mode version for noise sensitive applications
- 2 μA shutdown current
- Internal soft-start
- Enable function
- Overvoltage protection
- Output voltage sequencing
- Thermal protection
- SO-8 package
- Synchronization with external clock for LNM devices
Specifications
Attribute | Value |
|---|---|
| For Use With | Power Tools |
| Kit Classification | Evaluation Board |
| Featured Device | L6981 |
| Kit Name | 38 V, 1.5 A synchronous step-down switching regulator |
- RS Stock No.:
- 218-4821
- Mfr. Part No.:
- STEVAL-L6981NDR
- Manufacturer:
- STMicroelectronics