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Rev.1.5 Nov.06, 2019

AX5510A

680K/1.2MHz, High Voltage, Boost Converter

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GENERAL DESCRIPTION

The AX5510A is a high performance, high efficiency step up DC-DC Converter with

integrated 2A. The AX5510A converter input voltage ranging from 2.6 to 5.5V. The Output

voltage can be set up to 27V. The selectable frequency of 680 kHz and 1.2 MHz allows the

use of small external inductors and capacitors and provides fast transient response. Current

mode control with external compensation network makes it easy to stabilize the system and

keep maximum flexibility. Programmable soft start function minimizes impact on the input

power system. Internal power MOSFET with very low RDS(ON) provides high efficiency. The

AX5510A automatically transits from PWM to PFM during light load condition further

increasing efficiency. The converter also provides protection functions such as Current Limit

and Thermal shutdown. The AX5510A is available in space-saving MSOP-10L-EP,

MOSP-8L-EP, TDFN-10L and SOP-8L-EP packages.

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FEATURES

- 2.6V to 5.5V operating input voltage range

- Adjustable output voltage range up to 27V

- Up to 2A output switch current

- 680K/1.2MHz Selectable Switching Frequency

- Programmable soft-start function

- External Compensation Network

- Current limit and Thermal shutdown protection

- Under voltage Lockout

- ≤ 1µA Shutdown Current

- Available in the Pb-Free MSOP-10L-EP, MSOP-8L-EP ,TDFN-10L and SOP-8L-EP

Packages

- RoHS and Halogen free compliance.