L4971

画像は参照用のみです。

L4971

IC REG BUCK ADJUSTABLE 1.5A 8DIP

100% オリジナル &新しい

出荷の準備ができている24時間

365日の保証

RFQおよびもっと割引を得る

仕様

Package Tube
ProductStatus Active
Function Step-Down
OutputConfiguration Positive
Topology Buck
OutputType Adjustable
NumberofOutputs 1
Voltage-Input(Min) 8V
Voltage-Input(Max) 55V
Voltage-Output(Min/Fixed) 3.3V
Voltage-Output(Max) 50V
Current-Output 1.5A
Frequency-Switching 100kHz ~ 300kHz
SynchronousRectifier No
OperatingTemperature -40°C ~ 150°C (TJ)
MountingType Through Hole
Package/Case 8-DIP (0.300, 7.62mm)

概要

Description

L4971 is not a single universal device—it's a part-number used by several vendors. The best-known version is a DC-DC buck switching-reg regulator controller.
- Type: high-voltage, current‑mode PWM controller used to regulate a buck converter (drives an external MOSFET; some variants may include a FET).
- Key features: overcurrent/short-circuit protection, undervoltage lockout, thermal protection, soft-start, and adjustable switching frequency.
- Typical use: automotive or industrial power supplies requiring a robust buck regulator.
- External components: external MOSFET (if not integrated), inductor, catch diode, input/output capacitors, and feedback network.
- Important: exact specs (input range, protection details, pinout, package) vary by variant and vendor. Check the specific datasheet for your suffix.
If you can provide the vendor or suffix, I can give a precise, vendor-specific intro.

Package

Please specify the exact variant (manufacturer and suffix) of L4971. Package type varies by version; common options include D²PAK (TO-263), DPAK, or SO-8 depending on the suffix.

Pinout

8-pin package (DIP-8/SO-8). Function: High‑voltage PWM controller for switch‑mode power supplies (e.g., flyback/buck converters) that drives an external MOSFET and provides startup, current‑mode control, overvoltage/overcurrent protection, and soft‑start.

Manufacturer

- Manufacturer: STMicroelectronics.
- What kind of company: A multinational electronics and semiconductor company (French-Italian-Swiss origin, headquartered in Geneva, Switzerland) that designs and manufactures integrated circuits, semiconductors, MEMS, sensors, microcontrollers, power management ICs, and related components.

Application

- Automotive power management (ECUs, body electronics, infotainment)
- Industrial automation power supplies
- DC-DC buck/boost regulators for telecom and server equipment
- Battery-powered portable devices
- LED lighting drivers and backlighting
- General consumer electronics power rails

Equivalent

Direct equivalents depend on the exact L4971 device (the L4971 name is used for different ST parts). Please confirm the device category (motor driver, regulator, LIN transceiver, etc.) and provide key specs or a datasheet link (voltage, current, interface, package). With that, I can give cross-reference equivalents from TI, NXP, On Semi, ROHM, and others.

出荷

出荷方法私たち

DHL、FedEx、TNT、UPS、またはあなたの選択の他の運送業者を通じてグローバルな出荷サービスを提供します。


出荷料参照（DHL/FedEx）:

DHL の: 配送費は25ドル〜45ドル（0.5kg）の範囲で、推定配送時間は2〜5営業日です。

フェデックス: 配送費は25ドル〜40ドル（0.5kg）の範囲で、推定配送時間は3〜7営業日。

UPS の: 配送費は25ドル〜45ドル（0.5kg）の範囲で、推定配送時間は3〜7営業日。

TNT社: 配送費は25ドル〜65ドル（0.5kg）の範囲で、推定配送時間は3〜7営業日。

EMS: 配送料金は30〜50ドル（0.5kg）の範囲で、推定配送時間は7〜15営業日です。

登録航空郵便: 配送費は2〜4ドル（0.1kg）で、推定配送時間は5〜20営業日です。

支払い

Payment Methods

支払い期間は100％前払いです。

現在、下記の支払い方法のみを受け入れています。:

1. ペイパル

2. クレジット・デビットカード

3. ワイヤー 転送

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