Altium CircuitMaker - Design Custom Component - HT7333 Voltage Regulator
The HT7333 is a three-terminal, low-power, high-voltage regulator that uses CMOS technology. This article is going to talk about the features, applications, and more detailed information about HT7333.
The HT7333 is a three-terminal, low-power, high-voltage regulator that uses CMOS technology. The series has a very low quiescent current, which is usually around 3.5A. It accepts input voltages of up to 12V. The device delivers a lot of current with a very low dropout voltage.
A high-precision voltage reference, an error-correcting circuit, and a current limiting output driver make up the HT7333. It comes with a variety of fixed output voltages ranging from 1.8 to 5.0 volts. Low dropout voltage and low current usage are ensured by CMOS technology. These devices can be combined with external components to generate variable voltages and currents while being designed primarily as fixed voltage regulators.
Ultra-low quiescent current: 3.5µA (Typ.)
High input voltage (up to 12V)
Output voltage: 1.8V, 2.5V, 2.7V, 3.0V, 3.3V, 3.5V, 4.15V, 5.0V
Output voltage accuracy: tolerance ±3%
Maximum output current: 250mA
Low dropout voltage
Low temperature coefficient
TO-92, SOT-89 package
HT7333 Pinout
| Pin No. | Pin Name | Description | |
| SOT89 | TO92 | ||
| 1 | 1 | GND | Ground pin |
| 2 | 2 | VIN | Input pin |
| 3 | 3 | VOUT | Output pin |
Holtek Semicon HT7333 technical specifications, attributes, parameters and parts with similar specifications to Holtek Semicon HT7333.
| Attribute | Value |
|---|---|
| Package / Case | SOT-89(SOT-89-3) |
| Supply Voltage | VSS−0.3V to VSS+14V |
| Storage Temperature | −50°C to 125°C |
| Power Consumption | 500mW |
| Operating Temperature | −40°C to 85°C |
| Power Consumption | 500mW |
HT7333 Application Circuit
Battery-powered equipment
Voltage regulator for microprocessor
Voltage regulator for LAN cards
Wireless Communication equipment
Audio/Video equipment
Supply the input voltage to the V-in pin of the HT7333, and we obtain a regulated 3.3V at the output pin, just like any other linear regulator. Ripple filtering is done with the input and output capacitors. Below is a diagram of a typical application circuit.
HT7333 Package information
Holtek (Holtek Semiconductor) is built on a team that has been working in the field of semiconductor IC design since 1983 and has amassed a large number of intellectual property rights and patents. Local sales and technical service bases have been established in Taiwan, China, and the United States. Holtek Semiconductor, based in Hsinchu Science and Technology Industrial Park, is a professional semiconductor circuit design business. The company currently employs around 300 people, and its primary areas of focus include semiconductor circuit design, research and development, and sales.
