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The L5987 is a step-down switching regulator with a 3.5 A (minimum) current limited embedded Power MOSFET, so it is able to deliver an up to 3 A current to the load depending on the application conditions.
The input voltage can range from 2.9 V to 18 V, while the output voltage can be set starting from 0.6 V to VIN. Having a minimum input voltage of 2.9 V, the device is suitable also for a 3.3 V bus.
Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz.
The VFQFPN8 and the HSOP packages with an exposed pad allow reducing the RthJAdown to 60 °C/W and 40 °C/W respectively.Key Features
- 3 A DC output current
- 2.9 V to 18 V input voltage
- Output voltage adjustable from 0.6 V
- 250 kHz switching frequency, programmable up to 1 MHz
- Internal soft-start and inhibit
- Low dropout operation: 100% duty cycle
- Voltage feedforward
- Zero load current operation
- Overcurrent and thermal protection
- VFQFPN 3 x 3 -8L and HSOP8 package
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Picture Part number 制造商 描述 EVAL5987A -- 3 A step-down switching regulator demonstration board based on the L5987, L5987A 
STEVAL-ISA201V1 ST 3 A step-down switching regulator evaluation board based on the L5987 产品型号3 A step-down switching regulator demonstration board based on the L5987, L5987A
3 A step-down switching regulator evaluation board based on the L5987
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| 产品型号 | 供货状态 | 封装 | 等级规格 | 符合RoHS级别 | Material Declaration** |
|---|---|---|---|---|---|
| L5987A |
批量生产
|
PowerSO-8 | 工业 | Ecopack2 |
|
| L5987ATR |
批量生产
|
PowerSO-8 | 工业 | Ecopack2 |
|
| L5987TR |
批量生产
|
DFN8 3x3 | 工业 | Ecopack2 |
|
L5987A
Package:
PowerSO-8Material Declaration**:
L5987ATR
Package:
PowerSO-8Material Declaration**:
L5987TR
Package:
DFN8 3x3Material Declaration**:
(**) 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.
