DatasheetsPDF.com

HM5309

H&M semi
Part Number HM5309
Manufacturer H&M semi
Description PFM Step-Up DC-DC Controller
Published Jun 24, 2019
Detailed Description HM5309 PFM Step-Up DC-DC Controller IC HM5309 General Description The HM5309 is a simple, compact PFM boost controlle...
Datasheet PDF File HM5309 PDF File

HM5309
HM5309

Overview
HM5309 PFM Step-Up DC-DC Controller IC HM5309 General Description The HM5309 is a simple, compact PFM boost controller designed for applications where extremely low cost and small size are top priorities.
The output voltage is fixed at 9V with 1% accuracy from an input voltage range of +2.
7V to +6.
5V.
Low current consumption of 32uA typical makes HM5309 ideal for battery-powered applications.
The HM5309 is designed specifically to provide a simple application circuit and minimize the size and number of external components, making them ideal for consumer electronics applications.
The HM5309 adopts PFM operating mode, which provides excellent efficiency over a wide-range of input voltage and load currents.
The on-time and off-time are tuned to permit optimization of external component size.
Chip enable input can make HM5309 into ultra-low-current shutdown mode.
The HM5309 is available in a space-saving 6-pin SOT23 package.
Applications ⚫ Hand-held Devices ⚫ LCD Bias ⚫ Electric toys ⚫ Charger Features ⚫ Operating voltage range：2.
7V to 6.
5V ⚫ Low Operating Current: 32uA@5V ⚫ Fixed Output Voltage of 9V ⚫ High Output voltage accuracy：±1% ⚫ No Feedback Resistor needed ⚫ Output Voltage can be adjusted upwards with External Resistor ⚫ Output Power: up to 40W ⚫ High Efficiency: up to 94% ⚫ Chip Enable Input ⚫ Operating Temperature Range -40°C to +85°C ⚫ Available in SOT23-6 ⚫ Pb-free, rohs-Compliant and Halogen-free Pin Assignment 1 Typical Application Circuit HM5309 Figure 1 Typical Application Circuit (Fixed Output Voltage) Figure 2 Typical Application Circuit (Adjust Output Voltage with Rx) In the application circuit of Figure 2, the output voltage is determined by the following equation: Vout = 9 + 10.
7ⅹ10-6ⅹRx (V) (Typical) Where, Rx is the resistance in ohm The resistance of Rx can not be over 20K ohm.
2 Block Diagram HM5309 Figure 3 Block Diagram Ordering Information Part No.
HM5309 Mark HM5309 Shipping Tape and Reel, 3000/reel Operating Ambient Tempera...


Similar Datasheet


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site. (Privacy Policy & Contact)