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規格
| 屬性 | 價值 |
| Manufacturer | Holtek Semicon |
| Package / Case | SOT-89 |
| Operating Temperature | -40℃~+85℃ |
| Voltage - Supply | 30V |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Current - Output | 100mA |
| Voltage Dropout | 25mV@(1mA) |
| Output Voltage | 3.3V |
| Output Configuration | Positive electrode |
| standby current | 1uA |
概述
Description
The HT7533-3 is a low-dropout (LDO) voltage regulator from Holtek, providing a fixed 3.3V output with a maximum input voltage of 30V. It delivers up to 100mA of current with a low dropout voltage (typically 160mV at 40mA), making it suitable for battery-powered and low-power applications.
Key features:
- Low quiescent current (~4µA), enhancing efficiency.
- Low output noise, ideal for sensitive analog/digital circuits.
- Built-in overcurrent and thermal protection.
- TO-92, SOT-89, and SOT-23 packages for flexibility.
Common uses include powering microcontrollers, sensors, and IoT devices where stable voltage is critical. Its simplicity and reliability make it a popular choice for cost-sensitive designs.
For detailed specs, refer to the Holtek datasheet.
Key features:
- Low quiescent current (~4µA), enhancing efficiency.
- Low output noise, ideal for sensitive analog/digital circuits.
- Built-in overcurrent and thermal protection.
- TO-92, SOT-89, and SOT-23 packages for flexibility.
Common uses include powering microcontrollers, sensors, and IoT devices where stable voltage is critical. Its simplicity and reliability make it a popular choice for cost-sensitive designs.
For detailed specs, refer to the Holtek datasheet.
Equivalent
Equivalent products to the HT7533-3 (3.3V LDO regulator) include:
- AMS1117-3.3
- LM1117-3.3
- MCP1703-3.3
- XC6206P332MR
- AP2112K-3.3
These are 3.3V LDO regulators with similar specs (low dropout, ~250mA–1A output). Check datasheets for exact compatibility.
- AMS1117-3.3
- LM1117-3.3
- MCP1703-3.3
- XC6206P332MR
- AP2112K-3.3
These are 3.3V LDO regulators with similar specs (low dropout, ~250mA–1A output). Check datasheets for exact compatibility.
Features
The HT7533-3 is a low-dropout (LDO) voltage regulator with the following key features:
- Output Voltage: Fixed 3.3V
- Input Voltage Range: Up to 30V
- Low Dropout Voltage: Typically 500mV at 100mA load
- Output Current: Up to 100mA
- Low Quiescent Current: ~4µA (typical)
- High Accuracy: ±2% output tolerance
- Thermal & Short-Circuit Protection: Built-in
- Package Options: TO-92, SOT-89
Ideal for battery-powered and low-power applications requiring stable 3.3V supply.
- Output Voltage: Fixed 3.3V
- Input Voltage Range: Up to 30V
- Low Dropout Voltage: Typically 500mV at 100mA load
- Output Current: Up to 100mA
- Low Quiescent Current: ~4µA (typical)
- High Accuracy: ±2% output tolerance
- Thermal & Short-Circuit Protection: Built-in
- Package Options: TO-92, SOT-89
Ideal for battery-powered and low-power applications requiring stable 3.3V supply.
Application
The HT7533-3 is a 3.3V low-dropout (LDO) voltage regulator, commonly used in:
1. Battery-Powered Devices – Portable electronics like sensors, IoT modules, and wearables.
2. Embedded Systems – Microcontroller (MCU) power supply in Arduino, ESP8266, and other boards.
3. Consumer Electronics – Stabilizing voltage for LCDs, memory chips, and peripherals.
4. Automotive Electronics – Low-power components in infotainment or control systems.
5. Industrial Equipment – Reliable voltage regulation for sensors and control circuits.
Its low quiescent current (~4µA) and compact package (SOT-89, TO-92) make it ideal for space-constrained, energy-efficient designs.
1. Battery-Powered Devices – Portable electronics like sensors, IoT modules, and wearables.
2. Embedded Systems – Microcontroller (MCU) power supply in Arduino, ESP8266, and other boards.
3. Consumer Electronics – Stabilizing voltage for LCDs, memory chips, and peripherals.
4. Automotive Electronics – Low-power components in infotainment or control systems.
5. Industrial Equipment – Reliable voltage regulation for sensors and control circuits.
Its low quiescent current (~4µA) and compact package (SOT-89, TO-92) make it ideal for space-constrained, energy-efficient designs.
Package
The HT7533-3 is a 3.3V low-dropout (LDO) voltage regulator typically available in a TO-92 or SOT-89 package. These packages are compact and suitable for low-power applications. The TO-92 is a through-hole type, while the SOT-89 is surface-mount. Check the datasheet for exact package options.
