The ADP1611 is a step-up dc-to-dc switching converter with an integrated 1.2 A, 0.23 Ω power switch capable of providing an output voltage as high as 20 V. With a package height of less than 1.1 mm, the ADP1611 is optimal for space-constrained applications such as portable devices or thin film transistor (TFT) liquid crystal displays (LCDs). The ADP1611 operates in pulse-width modulation (PWM) current mode with up to 1.2 MHz frequency.
The ADP1611 is a compact step‑up DC‑DC converter designed for space‑constrained applications such as portable devices and TFT LCD bias supplies. It operates from an input voltage of 2.5 V to 5.5 V and can deliver an adjustable output up to 20 V while maintaining up to 90 % efficiency.
Key features include a fully integrated 1.2 A, 0.23 Ω power switch, pin‑selectable switching frequencies of 700 kHz or 1.2 MHz, adjustable soft‑start, and built‑in undervoltage lockout. The device is offered in an 8‑lead MSOP package and is rated for operation from –40 °C to +85 °C.
| Maximum output voltage | 20 V (adjustable) |
|---|---|
| Switching frequency | 700 kHz or 1.2 MHz (pin‑selectable) |
| Efficiency | up to 90 % |
The ADP1611 can be set to deliver an adjustable output voltage up to 20 V.
The device offers pin‑selectable switching frequencies of 700 kHz or 1.2 MHz.
The converter can achieve up to 90 % efficiency.