Datasheet HT7727FA, HT7730FA, HT7733FA, HT7737FA, HT7750FA (Holtek) - 2
| Manufacturer | Holtek |
| Description | TinyPower TM 200mA Synchronous Step-up Converter |
| Pages / Page | 26 / 2 — HT77xxFA. Block Diagram. Pin Assignment. SOT23. SOT23-5. SOT89. HT7xxFA. … |
| File Format / Size | PDF / 9.0 Mb |
| Document Language | English |
HT77xxFA. Block Diagram. Pin Assignment. SOT23. SOT23-5. SOT89. HT7xxFA. xxFA. Pin Description. Pin No. Pin Name
Model Line for this Datasheet
Text Version of Document
HT77xxFA Block Diagram
LX A OUT VREF + Gate Driver Controller ̶ A Chip Enable GND CE
Pin Assignment SOT23 SOT23-5 SOT89
OUT LX GND 3 5 4
HT7xxFA xxFA xxFA
1 2 3 1 2 1 2 3 GND LX CE OUT NC GND OUT LX
Pin Description Pin No. Pin Name Pin Description SOT89 SOT23 SOT23-5
— — 1 CE Chip enable pin, high active. 2 3 2 OUT Output voltage pin — — 3 NC No connection 1 1 4 GND Ground pin 3 2 5 LX Switching pin Rev. 1.21 2 July 08, 2022 Document Outline Features Applications General Description Selection Table Typical Application Circuits Block Diagram Pin Assignment Pin Description Absolute Maximum Ratings Recommended Operating Ratings Electrical Characteristics Typical Performance Characteristics Functional Description Low Voltage Start-up Shutdown Power on Component Selection Power Inductor Input Capacitor Output Capacitor PCB Layout Suggestion Thermal Consideration Application Circuits Without CE Pin Application Circuit With CE Pin Application Circuit VIN Quick On/Off Power Supply with Low Load Ability Package Information 3-pin SOT23 Outline Dimensions 3-pin SOT89 Outline Dimensions 5-pin SOT23 Outline Dimensions
LX A OUT VREF + Gate Driver Controller ̶ A Chip Enable GND CE
Pin Assignment SOT23 SOT23-5 SOT89
OUT LX GND 3 5 4
HT7xxFA xxFA xxFA
1 2 3 1 2 1 2 3 GND LX CE OUT NC GND OUT LX
Pin Description Pin No. Pin Name Pin Description SOT89 SOT23 SOT23-5
— — 1 CE Chip enable pin, high active. 2 3 2 OUT Output voltage pin — — 3 NC No connection 1 1 4 GND Ground pin 3 2 5 LX Switching pin Rev. 1.21 2 July 08, 2022 Document Outline Features Applications General Description Selection Table Typical Application Circuits Block Diagram Pin Assignment Pin Description Absolute Maximum Ratings Recommended Operating Ratings Electrical Characteristics Typical Performance Characteristics Functional Description Low Voltage Start-up Shutdown Power on Component Selection Power Inductor Input Capacitor Output Capacitor PCB Layout Suggestion Thermal Consideration Application Circuits Without CE Pin Application Circuit With CE Pin Application Circuit VIN Quick On/Off Power Supply with Low Load Ability Package Information 3-pin SOT23 Outline Dimensions 3-pin SOT89 Outline Dimensions 5-pin SOT23 Outline Dimensions
