5pcs 2-5v To 3.3v Charge Pump Step-down & Step-up Boost Buck Dc-dc Converter

"Description:

Low Noise, Regulated Charge Pump DC/DC Converter
2 in 1 DC-DC Step-Down & Step-Up Converter module
Fixed 3.3V+-4% Output
Voltage Input Range: 1.8~5V
Long time maximum output current 100mA
Short time maximum output current 150mA
working frequency 1.2MHz.
Short-Circuit Protection
No load input current : 0.65mA
Size 11mm x 7.6mm x 4.5mm(small)
Weight : 0.3g(Very very light)

The CE021is a low noise, constant frequency (1.2MHz) switched capacitor voltagedoubler.
It produce a regulated output voltagefrom a 1.8V to 5V input with up to 100mA of output current.Low external parts count (one flying capacitor and two small bypasscapacitors at VIN and VOUT) make theCE021 ideally suited for small,battery-powered applications.

The CE021 have thermal shutdown capability and can survive a continuous short circuit from VOUT to GND. Built-in soft-start circuitry prevents excessive inrush current during start-up.

High switching frequency enables the use of small ceramic capacitors. A low current shutdown feature disconnects the load from VIN and reduces quiescent current to <1uA.

Applications:

Low Power Wifi Module:ESP8266
Low-power Bluetooth module : HC-05 HC-06 SPP-C
Low-power Wireless UART module : HC-11 HC-12
Low-power wireless module : CC1101 CC2500 Nrf24l01+
Low-power LED Driver

Estimated delivery time：About 10 business days.We will use standard shipment for the orders. Normally it may need about 10 days, but sometimes please note: Delivery times are as provided by our carriers and are estimates only. Delays may occur during peak periods, and due to factors outside the carriers control.