61 V 2 A asynchronous step-down switching regulator with adjustable current limitation

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製品概要

概要

The L7987L device is a step-down monolithic switching regulator able to deliver up to 2 A DC. The output voltage adjustability ranges from 0.8 V to almost VIN. The embedded switchover feature on the VBIAS pin maximizes the efficiency at light load. The adjustable current limitation, designed to select the inductor RMS current accordingly with the nominal output current, and the high switching frequency capability make the size of the application compact. Pulse-by-pulse current sensing with digital frequency foldback implements an effective constant current protection over the different application conditions. The peak current foldback decreases the stress of the power components in heavy short-circuit condition. The PGOOD open collector output can also implement output voltage sequencing during the power-up phase. Multiple devices can be synchronized sharing the SYNCH pin to prevent beating noise in low noise applications like sensors with A/D conversion.

  • 特徴

    • 2 A DC output current
    • 4.5 V to 61 V operating input voltage
    • RDS,ON = 300 mΩ typ.
    • Adjustable fSW (250 kHz - 1.5 MHz)
    • Low IQ-SHD (11 μA typ. from VIN)
    • Low IQ (1 mA typ. - VIN 24 V - VOUT 3.3 V)
    • Output voltage adjustable from 0.8 V to VIN
    • 同期化
    • Adjustable soft-start time
    • Adjustable current limitation
    • Advanced bootstrap capacitor management for LDO operation
    • VBIAS improves efficiency at light load
    • PGOOD open collector output
    • Output voltage sequencing
    • Digital frequency foldback in short-circuit
    • Peak current foldback in short-circuit
    • Auto-recovery thermal shutdown

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品質 & 信頼性

製品型番 マーケティング・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 材料宣誓書**
L7987L
量産中
HTSSOP16 インダストリアル Ecopack2
L7987LTR
量産中
HTSSOP16 インダストリアル Ecopack2

L7987L

Package:

HTSSOP16

Material Declaration**:

PDF XML

Marketing Status

量産中

Package

HTSSOP16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L7987LTR

Package:

HTSSOP16

Material Declaration**:

PDF XML

Marketing Status

量産中

Package

HTSSOP16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.comで提供している材料宣誓書は、パッケージ・ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください

サンプル & 購入

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製品型番
製品ステータス
Budgetary Price (US$)*/Qty
STから購入
Order from distributors
パッケージ
梱包タイプ
RoHS
Country of Origin
ECCN (US)
ECCN (EU)
L7987LTR
量産中
1.199 / 1k
Available at 6 distributors

販売代理店在庫 L7987LTR

販売代理店
地域 在庫 最小発注数量 パートナー企業リンク
Farnell Element14 EUROPE 37280 1
MOUSER WORLDWIDE 8283 1
FUTURE WORLDWIDE 5000 0
AVNET AMERICA 2500 0
DIGIKEY WORLDWIDE 9778 1
YOSUN ASIA/PACIFIC 100 1

販売代理店在庫データ: 2/13/2025

HTSSOP16 Tape and Reel PHILIPPINES EAR99 NEC
L7987L
量産中
1.199 / 1k
Available at 3 distributors

販売代理店在庫 L7987L

販売代理店
地域 在庫 最小発注数量 パートナー企業リンク
Farnell Element14 EUROPE 1866 1
MOUSER WORLDWIDE 6283 1
DIGIKEY WORLDWIDE 2814 1

販売代理店在庫データ: 2/13/2025

HTSSOP16 Tube CHINA EAR99 NEC

L7987LTR 量産中

Budgetary Price (US$)*/Qty:
1.199 / 1k
パッケージ:
HTSSOP16
梱包タイプ:
Tape and Reel
RoHS:
Country of Origin:
PHILIPPINES
ECCN (US):
EAR99
ECCN (EU):
NEC

製品型番:

L7987LTR

販売代理店

Farnell Element14

在庫

37280

Min.Order

1

MOUSER

在庫

8283

Min.Order

1

地域

WORLDWIDE Buy from Distributor

FUTURE

在庫

5000

Min.Order

0

地域

WORLDWIDE Buy from Distributor

AVNET

在庫

2500

Min.Order

0

地域

AMERICA Buy from Distributor

DIGIKEY

在庫

9778

Min.Order

1

地域

WORLDWIDE Buy from Distributor

YOSUN

在庫

100

Min.Order

1

地域

ASIA/PACIFIC Buy from Distributor

販売代理店在庫データ: 2/13/2025

L7987L 量産中

Budgetary Price (US$)*/Qty:
1.199 / 1k
パッケージ:
HTSSOP16
梱包タイプ:
Tube
RoHS:
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC

製品型番:

L7987L

販売代理店

Farnell Element14

在庫

1866

Min.Order

1

MOUSER

在庫

6283

Min.Order

1

地域

WORLDWIDE Buy from Distributor

DIGIKEY

在庫

2814

Min.Order

1

地域

WORLDWIDE Buy from Distributor

販売代理店在庫データ: 2/13/2025

Swipe or click the button to explore more details Don't show this again

(*)概算用の参考価格(US$)です。現地通貨でのお見積りについては、STのセールス・オフィスまたは販売代理店までお問い合わせください。