PAM2861

Document number: DSxxxxx Rev. 1 - 1

9 of 12

www.diodes.com

July 2013

© Diodes Incorporated

PAM2861

A Product Line of

Diodes Incorporated

Diode Selection

For maximum efficiency and performance, the rectifier (D1) should be a fast low capacitance Schottky diode with low reverse leakage at the

maximum operating voltage and temperature. They also provide better efficiency than silicon diodes, due to a combination of lower forward

voltage and reduced recovery time.

It is important to select parts with a peak current rating above the peak coil current and a continuous current rating higher than the maximum

output load current. It is very important to consider the reverse leakage of the diode when operating above +85°C. Excess leakage will increase

the power dissipation in the device and if close to the load may create a thermal runaway condition.

The higher forward voltage and overshoot due to reverse recovery time in silicon diodes will increase the peak voltage on the LX output. If a

silicon diode is used, care should be taken to ensure that the total voltage appearing on the LX pin including supply ripple, does not exceed the

specified maximum value.

Ordering Information

Part Number

Part Marking

Package Type

Standard Package

PAM2861ABR

EQXYW

TSOT25

3000 Units/ Tape&Reel

PAM2861CBR

P2861

XXXYW

SOT89-5

1000 Units/ Tape&Reel

Marking Information

Top View

TSOT25