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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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サンプル & 購入
| 製品型番 | パッケージ | 梱包タイプ | 製品ステータス | 概算価格（USS） | 数量 | ECCN (US) | Country of Origin | 販売代理店からオーダー | STからオーダー |
|---|---|---|---|---|---|---|---|---|---|
| L5987TR | DFN8 3x3 | Tape And Reel |
アクティブ
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0.995 | 10000 | EAR99 | PHILIPPINES | 在庫チェック | サンプル入手 |
| L5987ATR | PowerSO-8 | Tape And Reel |
アクティブ
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0.995 | 10000 | EAR99 | CHINA | 在庫チェック | サンプル入手 |
| L5987A | PowerSO-8 | Tube |
アクティブ
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0.995 | 10000 | EAR99 | CHINA | 在庫チェック | 購入 |
(*) 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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写真 Part number 製造元 概要 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 製品型番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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| 製品型番 | 製品ステータス | パッケージ | グレード | RoHSコンプライアンスグレード | Material Declaration** |
|---|---|---|---|---|---|
| L5987A |
アクティブ
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PowerSO-8 | インダストリアル | Ecopack2 |
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| L5987ATR |
アクティブ
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PowerSO-8 | インダストリアル | Ecopack2 |
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| L5987TR |
アクティブ
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DFN8 3x3 | インダストリアル | Ecopack2 |
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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.
