HT77xxC 5V PFM Asynchronous Step-up Controller
●General Description
■The HT77xxC series is a set of PFM step-up DC/DC converters with high efficiency and low ripple. The series features extremely low start-up voltage and high output voltage accuracy. They require only few external components to provide a fixed output voltage of 1.8V, 2.2V, 2.7V, 3.0V, 3.3V, 3.7V and 5.0V. CMOS technology ensures low supply current and makes them ideal for battery-operated applications powered from one or more cells.
■The HT77xxC series consist of an oscillator, a PFM control circuit, a gate driver, a reference voltage unit and a high speed comparator. They employ pulse frequency modulation (PFM) for minimum supply current and ripple at light output loading. These devices are available in space saving 3-pin SOT89 and 5-pin SOT23 packages. For the 5-pin SOT23 package, it also contains a chip enable function to reduce power consumption during shutdown mode.
●Features
■Low startup voltage: 0.85V (Typical)
■High efficiency up to 85%
■Ultra low no load input current
■High output voltage accuracy: ±2.5%
■Fixed output voltage: 1.8V, 2.2V, 2.7V, 3.0V, 3.3V, 3.7V and 5.0V
■Ultra low shutdown current: 0.1μA (Typical)
■Package type: 3-pin SOT89 and 5-pin SOT23
|
5V PFM Asynchronous Step-up Controller 、 PFM step-up DC/DC converters |
|
|
[ portable products ][ Portable equipment ][ handheld devices ] |
|
|
Datasheet |
|
|
|
|
Please see the document for details |
|
|
|
|
|
|
|
|
SOT89;SOT23-5 |
|
|
English Chinese Chinese and English Japanese |
|
|
August 01, 2018 |
|
|
Rev. 1.10 |
|
|
|
|
|
2.4 MB |
- +1 Like
- Add to Favorites
Recommend
- Synchronous Step-Up DC-DC Converter with PFM Control and High efficiency of 95%
- Renesas newly launches A Single 5V Powered RX660 MCU for Both System Control and Inverter Control
- AC DC 5V Power Supply Module: Providing Reliable and Efficient Power
- AC DC 5V Power Supply Module: Providing Efficient and Reliable Power
- Exploring the AC/DC 5V Power Supply Module and Its Versatile Applications
- AC/DC 5V Power Supply Module: Stable and Efficient Voltage Conversion Solution
- New Release of Nisshinbo NA2200, 5V Analog Front End with High-Gain PGA
- AC DC 5V Power Supply Module: A Compact and Reliable Solution for Your Electrical needs
All reproduced articles on this site are for the purpose of conveying more information and clearly indicate the source. If media or individuals who do not want to be reproduced can contact us, which will be deleted.
Integrated Circuits
Discrete Components
Connectors & Structural Components
Assembly UnitModules & Accessories
Power Supplies & Power Modules
Electronic Materials
Instrumentation & Test Kit
Electrical Tools & Materials
Mechatronics
Processing & Customization
