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The L6986H is a step-down monolithic switching regulator able to deliver up to 2 A DC. The output voltage adjustability ranges from 0.85 V to VIN. Thanks to the P-channel MOSFET high-side power element, the device features 100% duty cycle operation. The wide input voltage range meets the specification for the 5 V, 12 V and 24 V power supplies.
The “low consumption mode” (LCM) is designed for applications active during idle mode, so it maximizes the efficiency at light-load with controlled output voltage ripple. The “low noise mode” (LNM) makes the switching frequency constant and minimizes the output voltage ripple overload current range, meeting the low noise application specifications. The output voltage supervisor manages the reset phase for any digital load (µC, FPGA). The RST open collector output can also implement output voltage sequencing during the power-up phase. The synchronous rectification, designed for high efficiency at medium - heavy load, and the high switching frequency capability make the size of the application compact. Pulse by pulse current sensing on both power elements implements an effective constant current protection.
Key Features
- 2 A DC output current
- 4 V to 38 V operating input voltage
- Low consumption mode or low noise mode
- 30 µA IQ at light-load (LCM VOUT = 3.3 V)
- 8 µA IQ-SHTDWN
- Adjustable fSW (250 kHz - 2 MHz)
- Fixed output voltage (3.3 V and 5 V) or adjustable from 0.85 V to VIN
- Embedded output voltage supervisor
- Synchronization
- Adjustable soft-start time
- Internal current limiting
- Overvoltage protection
- Output voltage sequencing
- Peak current mode architecture
- RDS(on) HS = 180 mΩ, RDS(on) LS = 150 mΩ
- Thermal shutdown
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 |
|---|---|---|---|---|---|---|---|---|---|
| L6986H5VTR | HTSSOP16 | Tape And Reel |
アクティブ
|
- | - | EAR99 | - | 販売代理店に在庫がない場合は、STのセールスオフィスまでお問い合わせください | |
| L6986HTR | HTSSOP16 | Tape And Reel |
アクティブ
|
- | EAR99 | - | 在庫チェック | 購入 | |
| L6986H | HTSSOP16 | Tube |
アクティブ
|
1.33 | 10000 | EAR99 | - | 販売代理店に在庫がない場合は、STのセールスオフィスまでお問い合わせください | |
| L6986H5V | HTSSOP16 | Tube |
アクティブ
|
- | - | EAR99 | - | 販売代理店に在庫がない場合は、STのセールスオフィスまでお問い合わせください | |
| L6986H3V3 | HTSSOP16 | Tube |
アクティブ
|
- | - | EAR99 | - | 販売代理店に在庫がない場合は、STのセールスオフィスまでお問い合わせください |
L6986H5VTR
パッケージ
HTSSOP16梱包タイプ
Tape And ReelUnit Price (US$)
*L6986H
パッケージ
HTSSOP16梱包タイプ
TubeUnit Price (US$)
1.33*L6986H5V
パッケージ
HTSSOP16梱包タイプ
TubeUnit Price (US$)
*L6986H3V3
パッケージ
HTSSOP16梱包タイプ
TubeUnit Price (US$)
*(*) 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
ビデオ
評価ツール
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写真 Part number 製造元 概要 
STEVAL-ISA206V1 ST 38 V, 2 A synchronous step-down switching regulator evaluation board based on L6986H 製品型番38 V, 2 A synchronous step-down switching regulator evaluation board based on L6986H
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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** |
|---|---|---|---|---|---|
| L6986H |
アクティブ
|
HTSSOP16 | インダストリアル | Ecopack2 |
|
| L6986H3V3 |
アクティブ
|
HTSSOP16 | インダストリアル | Ecopack2 |
|
| L6986H5V |
アクティブ
|
HTSSOP16 | インダストリアル | Ecopack2 |
|
| L6986H5VTR |
アクティブ
|
HTSSOP16 | インダストリアル | Ecopack2 |
|
| L6986HTR |
アクティブ
|
HTSSOP16 | インダストリアル | Ecopack2 |
|
L6986H
Package:
HTSSOP16Material Declaration**:
L6986H3V3
Package:
HTSSOP16Material Declaration**:
L6986H5V
Package:
HTSSOP16Material Declaration**:
L6986H5VTR
Package:
HTSSOP16Material Declaration**:
L6986HTR
Package:
HTSSOP16Material 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.
