1. Provides commonly used output voltages of 3.3V, 4V, and 5V, freely adjustable by the customer
2. Features high-performance circuit design to minimize energy loss and ensure stable, reliable output
3. Compact size and lightweight construction for easy integration into various devices or DIY projects
4. Built-in multiple protection mechanisms guarantee safe operation of the module and connected devices
5. Manufactured with premium materials for assured product quality and enhanced stability
Product Specifications:
Input Voltage: DC 1.8V-5.5V (recommended 2V or higher)
Output Voltage: 3.3V/4V/5V (adjustable via jumper)
Maximum Operating Current: 3A
Selectable Normal/Power-Saving Mode
Output Short-Circuit Protection
Built-in Over-Temperature Protection
Product Description:
Features genuine imported chips from major brands. Maximum operating current: 3A. Actual current should be selected based on voltage drop and heat dissipation conditions. For low-power scenarios, short-circuit the PS pin to enable power-saving mode and remove the LED to reduce static power consumption. Output voltage is adjustable via jumper settings, with a reserved resistor soldering point for configuring additional voltages.
Wiring Guide:
VIN: DC input positive terminal (1.8V-5.5V)
GND: DC input negative terminal, connected to output negative terminal
OUT: DC output positive terminal
PS Shorting Point: Shorting activates power-saving mode from standard operation
1. Maximum input/output current: 3A (output ≤ 3A during buck operation; input ≤ 3A during boost operation). Actual current depends on voltage drop and thermal conditions.
2. No reverse polarity protection. Module operates down to 1.8V min, but output power is reduced at low voltages
3. Use sufficiently thick wiring to handle rated currents
4. Protect inductive loads to prevent excessive back EMF exceeding chip tolerance
5. Higher power usage approaches maximum current, increasing heat generation. Ensure adequate thermal management
6. In standard mode, standby current ranges from several mA to tens of mA across different output voltages. After shorting the PS pin and removing the LED, standby current can be reduced to under 100μA.
7. Users can customize output voltage: shorting the 3V3 pad outputs 3.3V, similarly shorting the 4V2 pad outputs 4.2V. Do not short multiple pads simultaneously.
Package Contents:
Boost/Buck Module*1
⚠️ WARNING (California Proposition 65): This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, please visit www.P65Warnings.ca.gov.
