HT73Lxx
6.6V, 250mA Low Power LDO High PSRR LDO with Protections
General Information
(HT73Lxx 4DFN Package Restricted Products. Notification Date : 2025/11/28 Effective Date : 2026/02/28)
(HT73L09/10/12/15/27 Restricted Products. Notification Date : 2026/02/05 Effective Date : 2026/05/05)
The HT73Lxx are a series of low dropout voltage regulators with an input voltage range from 2.3V to 6.6V. They are available in a range of fixed output voltages from 0.9V to 3.6V. When the CE pin input is low, a fast discharge path pulls the output voltage low via an internal pull-down resistor. An internal overcurrent protection circuit prevents the devices from damage even if their output was shorted to ground. An over-temperature protection circuit ensures the device junction temperature will not exceed a temperature of 150ºC.
Due to the device’s outstanding PSRR and low output noise performance features, they are suitable for use in powering RF applications such as sub-1GHz transceivers. The devices also suitable for space limited applications such as financial/credit cards or smart wearable products.
Feature Details
| Attribute | Value |
|---|---|
| 2.3V to 6.6V operating input voltage | Available |
| Up to 250mA output current capability | Available |
| Fixed output voltage range | 0.9V, 1.05V, 1.2V, 1.5V, 1.8V, 2.5V, 2.7V, 3.0V, 3.3V and 3.6V with ±2% accuracy |
| Ultra low input consumption current | 1.35μA (typical) |
| Stable with 1μF ceramic output capacitor | Available |
| Fast output discharge to ground when shutdown | Available |
| Soft-start function when powered on | Available |
| High PSRR | 75dB at 1kHz |
| Low output noise | 50μVRMS from 10Hz to 100kHz |
| Over current and over temperature protection features | Available |
| Enable/disable function | Available |
| Package types | 5-pin SOT23 and 3-pin SOT89 |
Resources
| Title | Date | File Size | Language | Download |
|---|