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