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