SC189LSKTRT

Semtech SC189LSKTRT semiconductor component with synchronous rectification
6,451 有效庫存

SC189LSKTRT

有效庫存6,451

Semtech SC189LSKTRT semiconductor component with synchronous rectification

  • 製造商零件號 # : SC189LSKTRT

  • 包裝/封裝: SOT-23-5

  • 零件狀態 : Active

  • 製造商: Semtech

  • 產品分類 : Voltage Regulators - DC DC Switching Regulators

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SC189LSKTRT 數據表
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詳細說明

The SC189LSKTRT is a buck voltage regulator integrated circuit (IC) that provides a regulated output voltage of 1.8V with a maximum output current of 1.5A. This IC comes in a SOT23-5 package, which is a small surface-mount package with five pins. The SC189LSKTRT is designed for applications that require a stable and efficient power supply with a low dropout voltage. It is commonly used in various electronic devices such as power management systems, battery-powered devices, and portable consumer electronics. This buck regulator IC uses pulse-width modulation (PWM) to efficiently convert a higher input voltage to a lower output voltage while maintaining a stable output. It also features overcurrent protection, thermal shutdown protection, and input/output voltage protection, ensuring the safety and reliability of the connected circuitry.

主要特徵

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應用

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規格

以下是所選零件的基本參數，涉及零件的特性及其所屬類別。

Product Category ! Switching Voltage Regulators RoHS Details
Output Voltage 1.8 V Output Current ! 1.5 A
Input Voltage, Max 5.5 V Number of Outputs 1 Output
Topology Buck Package / Case SOT-23-5
Mounting Style SMD/SMT Switching Frequency ! 2.5 MHz
Minimum Operating Temperature - 40 C Maximum Operating Temperature ! + 125 C
Series SC189 Input Voltage, Min 2.9 V
Brand Semtech Development Kit SC189xEVB-2
Input Voltage 2.9 V to 5.5 V Load Regulation ! 1 %
Operating Supply Current 7.5 mA Product Type ! Switching Voltage Regulators
Shutdown Shutdown Factory Pack Quantity 3000
Subcategory PMIC - Power Management ICs Supply Voltage - Min 2.9 V
Type Synchronous Step Down Regulator Unit Weight 0.001058 oz

數據表 PDF

數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。

初步規格 SC189LSKTRT PDF 下載

常見問題解答

What is SC189LSKTRT?

The SC189LSKTRT is a low dropout voltage regulator (LDO) designed by Semtech Corporation. It is ideal for applications requiring a stable and regulated output voltage with low dropout voltage, such as battery-powered devices, portable electronics, and embedded systems.

How Does SC189LSKTRT Work?

The SC189LSKTRT works by regulating the input voltage to provide a stable output voltage with low dropout. It utilizes a feedback mechanism to adjust the pass transistor, ensuring the output remains constant even with varying input voltages and load conditions. The low dropout voltage enables efficient use of battery power in portable devices.

How Many Pins does SC189LSKTRT have and What are the Functions of the Pinout Configuration?

The SC189LSKTRT is housed in a 6-pin SOT-23 package. The pinout configuration includes:

  • VIN: Input voltage pin.
  • GND: Ground pin.
  • VOUT: Regulated output voltage pin.
  • ADJ: Adjustable output pin for certain configurations.
  • NC1, NC2: No connect pins.

What are the Pros and Cons of SC189LSKTRT?

Pros:

  • Low Dropout Voltage: Enables the use of small temperature coefficients and low quiescent current for efficient battery usage.
  • Stable Output: Provides a stable and regulated output voltage even with input voltage variations and load changes.
  • Small Package: The SOT-23 package is compact, making it suitable for space-constrained designs.
  • Low Noise: Delivers low output noise, suitable for noise-sensitive applications.
  • Adjustable Output: Some configurations allow for an adjustable output voltage, providing flexibility in certain applications.

Cons:

  • Heat Dissipation: May require attention to heat dissipation, especially in high-load and high-voltage difference conditions.
  • External Caps: May need external capacitors for stability and transient response in certain applications.

Are There Any Equivalents/Alternatives to SC189LSKTRT for Recommendation?

Some alternatives and equivalents to the SC189LSKTRT include:

  • The MCP1700 from Microchip Technology is a low dropout regulator with similar features.
  • The TLV702 from Texas Instruments and the TPS7A47 from Texas Instruments are also alternatives for low dropout voltage regulation.

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