Single lithium battery 1V 3V 3.7V 5V 1A mobile power charger module RT9266 voltage booster plate – 502

Single lithium battery 3V 3.7V l 5V 1A boost board mini mobile power boost charger module

1: The diffused MOS tube is adopted.

2: When the output current is expanded to the rated 1a, it can output 1.5A. The Schottky diode of 2a is used to recharge the balance.

3: The circuit design does not need electrolytic capacitor and tantalum capacitor (the service life of electrolytic capacitor is short, and tantalum capacitor is in danger of explosion). Three ceramic capacitors are used in high-end circuits.

The ripple is very low, only tens of millivolts. Many of the ripple in the same industry have reached 500 millivolts, which will cause invisible damage to the equipment and seriously lead to abnormal operation or damage of the equipment.

4: Similarly, with load indicator and under voltage indicator (when the battery voltage is less than 2.7V, the indicator will turn off under load, when the battery voltage is greater than 2.7V, with load, the indicator will turn on, and without load, the indicator will turn on slightly)

5: Small volume, 14.1 * 18.8 * 5.5mm

6: The circuit conversion efficiency is high. When the efficiency is high, it exceeds 90%, and the efficiency of a single lithium battery is also greater than 80%. Unlike some peers, the efficiency is only 60-70%.

7: Input low-power reverse connection protection. If your battery is equipped with a 2A protection board, the protection board will protect when the positive and negative poles of the input power supply are reversed. Note that when there is no protection board or the input current is greater than 2a, the input reverse connection protection will fail and the module will be damaged. Remember.

8: Low quiescent current, new version, quiescent current will be less than 100 μ a. No switch is required to connect to the battery.

Module parameters

Module nature: non isolated boost module (boost)

Input voltage: 1-5V

Output voltage: 5.1-5.2v

Output current: rated 1a-1.5a (single lithium battery input), larger than 1.5A (single lithium battery input)

Conversion efficiency: up to 96% (the higher the input voltage, the higher the efficiency). Please see the following test pictures for details

Switching frequency: 500KHz

Output ripple: 30mV (max) 20m bandwidth (input 4V output 5.1V 1a)

Undervoltage indication: LED indicator with load is on (LED indicator with input voltage lower than 2.7V is off)

Operating temperature: industrial grade (- 40 ℃ to + 85 ℃)

Full load temperature rise: 30 ℃

Static current: 130ua

Load adjustment rate: ± 1%

Voltage regulation rate: ± 0.5%

Dynamic response speed: 5% 200us

Short circuit protection: none. If short circuit protection is required, lithium battery protection board can be added, or lithium battery with protection can be used.

Input reverse connection protection: none. If reverse connection protection is required, please configure our reverse connection protection board.

Wiring mode: Welding

Input mode: in + input positive stage, in – input negative stage

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