General Description
The AS1301 is a 50mA inductorless boost converter using a double H-bridge charge-pump topology with two external flying capacitors.
The AS1301 runs on a 1MHz fixed frequency and is utilized with a low noise regulation scheme to allow usage together with sensitive RF circuitry from the same battery supply.

KEY FEATUREs
Up to 92% Efficiency
2.7 to 5.25V Input Voltage
Regulated 5V Output
Automatic Mode Up-Switching
<5µA Shutdown Current
5V Tolerant Enable Signal
Up to 50mA Load Current
Overload Protection
Output Disconnected During Shutdown
Soft Start
No Inductor Required
Small External Components Required (COUT ≤2.2µF, CFLY ≤220nF)
Low Noise Fixed Frequency 1MHz Charge Pump:
- 1:1 Battery Feed Through Mode
- 2:3 Single Phase Mode
- 1:2 Dual Phase Mode
Package Options:
- TDFN (3x3x0.8mm) 10-pin
- WL-CSP 8-bumps with 0.5mm pitch