Module Introduction
This module adopts the TPS61088 power chip solution, which has stable performance, low ripple, 10A switching current capability, and a switching frequency of about 1MHz. The module provides two working modes, PWM and PFM, which can be adjusted by the user (default PFM low-power mode shipped).
The module still has stability that most other boost modules cannot match even when outputting high power. It is a good choice for users to use multiple lithium batteries in parallel for boosting applications to 5V voltage and 4A/5A output high current. Similarly, boosting to 9V/12V voltage is not a problem, and the output power can reach up to 30W. When outputting at 9V and 12V voltage, users only need to do a good job of heat dissipation to obtain good on load output ripple in high current situations.

Parameter Introduction
Module type: Switching power supply, Boost power supply
Input voltage: DC2.7-12V
Input current: 9A (max)
Output current: determined by input, refer to subsequent instructions for calculation
Output voltage: DC 4.5-12.6V
Output power: 30W (max), requires heat dissipation measures
Switching frequency: about 1MHz
Working mode: PWM/PFM
The following parameters were measured when the boost value was adjusted to 9V in PWM mode for user reference
Static current: 15-65ma (PWM mode)
200ua-60oua (PFM mode)
Output ripple: 30mVpp (unloaded)
Output efficiency: 92% (max)
Adjustment method: potentiometer, counterclockwise boost
Jumper pad selection, 5/9/12V, adjustable ADJ pad
Module interface: KF301-5.08/solder pad
Module weight: 10g/5.4g
Module size: 40 x 22mm (manually measured, with deviation)

VIN: Power input positive pole, 2.7-12V
GND: Input/output negative pole, shared
VOUT: Positive pole of power output, 4.5-12.6V