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規格
| 屬性 | 價值 |
| Manufacturer | Holtek Semicon |
| Package / Case | SOT-23-6 |
| Voltage - Supply | 4.5V~52V |
| Function | Step-down type |
| Number of Outputs | 1 |
| Topology | Step-Down |
| Operating Temperature | -40℃~+85℃ |
| Switch tube (built - in / external) | Built-in |
| Current - Output | 600mA |
| Frequency - Switching | 550kHz |
概述
Description
The HT7463B is a high-efficiency, step-up DC-DC converter IC designed for low-power applications. It features a wide input voltage range (0.9V to 5V) and can deliver an adjustable output voltage up to 5.5V, making it suitable for battery-powered devices like sensors, IoT gadgets, and portable electronics.
Key characteristics:
- Low start-up voltage (0.9V)
- High efficiency (up to 90%)
- Low quiescent current (~5µA)
- Compact SOT-23-5 package
The IC integrates a PFM control scheme for optimal efficiency at light loads and includes built-in protections like soft-start and overcurrent limiting. It requires minimal external components, simplifying PCB design.
Typical applications include boosting single-cell battery voltages (e.g., 1.5V AA/AAA) to 3.3V or 5V for microcontrollers or wireless modules.
For detailed specs, refer to the Holtek HT7463B datasheet.
Key characteristics:
- Low start-up voltage (0.9V)
- High efficiency (up to 90%)
- Low quiescent current (~5µA)
- Compact SOT-23-5 package
The IC integrates a PFM control scheme for optimal efficiency at light loads and includes built-in protections like soft-start and overcurrent limiting. It requires minimal external components, simplifying PCB design.
Typical applications include boosting single-cell battery voltages (e.g., 1.5V AA/AAA) to 3.3V or 5V for microcontrollers or wireless modules.
For detailed specs, refer to the Holtek HT7463B datasheet.
Equivalent
The HT7463B is a high-efficiency step-up DC-DC converter. Equivalent or similar products include:
- MT3608 (2A, 4.2V-24V output)
- XL6009 (4A, adjustable output)
- LM2577 (3A, adjustable boost converter)
- TPS61220 (TI, high-efficiency boost IC)
- AP3012 (1.2MHz, synchronous boost converter)
These alternatives offer comparable step-up functionality with varying current and voltage ranges. Check datasheets for exact specs.
- MT3608 (2A, 4.2V-24V output)
- XL6009 (4A, adjustable output)
- LM2577 (3A, adjustable boost converter)
- TPS61220 (TI, high-efficiency boost IC)
- AP3012 (1.2MHz, synchronous boost converter)
These alternatives offer comparable step-up functionality with varying current and voltage ranges. Check datasheets for exact specs.
Application
The HT7463B is a high-efficiency, step-up DC-DC converter IC commonly used in:
1. Portable Electronics: Powers devices like Bluetooth headsets, smartwatches, and wireless earbuds.
2. LED Drivers: Drives white LEDs in backlighting (e.g., LCDs) or flashlights.
3. Battery-Powered Devices: Extends battery life in gadgets using 1-2 cells (e.g., toys, sensors).
4. IoT/Wearables: Supports low-power applications with compact designs.
5. Consumer Electronics: Used in small appliances requiring stable voltage boosts.
Its low quiescent current and wide input range (0.9V–5V) make it ideal for energy-efficient, space-constrained applications.
1. Portable Electronics: Powers devices like Bluetooth headsets, smartwatches, and wireless earbuds.
2. LED Drivers: Drives white LEDs in backlighting (e.g., LCDs) or flashlights.
3. Battery-Powered Devices: Extends battery life in gadgets using 1-2 cells (e.g., toys, sensors).
4. IoT/Wearables: Supports low-power applications with compact designs.
5. Consumer Electronics: Used in small appliances requiring stable voltage boosts.
Its low quiescent current and wide input range (0.9V–5V) make it ideal for energy-efficient, space-constrained applications.
Package
The HT7463B is typically available in a SOT-23-5 package, a compact surface-mount option with 5 pins. This package is widely used for small ICs, offering good thermal and electrical performance in minimal space. Suitable for applications like voltage regulators or power management, it balances efficiency and size. Check datasheets for exact dimensions and pin configurations.
