S-1142A40H-E6T2U

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics:
  • High efficiency
  • Low dropout voltage
  • Wide input voltage range
  • Small package size
• Package: SOT-23-5
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Input Voltage Range: 2.5V to 6.5V
• Output Voltage: 4.0V ±2%
• Maximum Output Current: 150mA
• Dropout Voltage: 200mV (typical) at 100mA
• Quiescent Current: 30µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The S-1142A40H-E6T2U has a total of five pins arranged as follows:

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1. VIN: Input voltage pin
2. GND: Ground pin
3. NC: No connection pin
4. VOUT: Output voltage pin
5. EN: Enable pin

Functional Features

• Low dropout voltage ensures efficient power conversion even with small input-output voltage differentials.
• Wide input voltage range allows for versatile applications.
• The enable pin provides control over the regulator's operation, allowing for power-saving modes.
• Overcurrent protection safeguards the circuit from excessive current flow.

Advantages

• High efficiency results in minimal power dissipation.
• Small package size enables space-saving designs.
• Wide input voltage range makes it suitable for various applications.
• Low dropout voltage ensures stable output voltage even under low input voltages.

Disadvantages

• Limited maximum output current may restrict usage in high-power applications.
• The SOT-23-5 package may require additional heat dissipation measures for certain operating conditions.

Working Principles

The S-1142A40H-E6T2U is a linear voltage regulator that maintains a stable output voltage regardless of input voltage fluctuations. It achieves this by using a pass transistor to regulate the output voltage based on a reference voltage. The enable pin allows for control over the regulator's operation, enabling power-saving modes when necessary.

Detailed Application Field Plans

The S-1142A40H-E6T2U finds applications in various electronic devices where a stable and regulated voltage supply is required. Some potential application fields include: 1. Battery-powered devices: Portable electronics such as smartphones, tablets, and wearables can benefit from the low dropout voltage and wide input voltage range of the S-1142A40H-E6T2U. 2. IoT devices: Internet of Things (IoT) devices often operate on low power and require efficient voltage regulation. The S-1142A40H-E6T2U's small package size makes it suitable for compact IoT designs. 3. Automotive electronics: With its wide operating temperature range, the S-1142A40H-E6T2U can be used in automotive applications that require reliable voltage regulation.

Detailed and Complete Alternative Models

1. S-1142B40H-E6T2U: Similar to the S-1142A40H-E6T2U, but with an adjustable output voltage feature.
2. S-1142C40H-E6T2U: Higher maximum output current variant of the S-1142A40H-E6T2U, capable of delivering up to 300mA.

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