User's Guide
SNVA383D – November 2008 – Revised April 2013
AN-1931 LM25088 Evaluation Board
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Introduction
The LM25088 evaluation board is designed to provide the design engineer with a fully functional power
converter based on emulated current mode control to evaluate the LM25088 controller IC. The LM25088
evaluation board is available in two versions (like the LM25088 controller): the LM25088-1 evaluation
board provides ±5% oscillator frequency dithering to reduce EMI and the LM25088-2 evaluation board
provides hiccup mode restart to reduce over load stress. Both the evaluation boards share the same
layout except for silkscreen. The printed circuit board consists of two layers, 2 ounce of copper top and
bottom and the board size is 2.55x1.5x0.5 inches.
Specification
LM25088-1
LM25088-2
Input Voltage Range
5.5V to 36V
5.5V to 36V
Output Voltage
5.0V
5.0V
Max. Average Load Current
7A
7A
Load Regulation
2%
2%
Current Limit Type
Cycle-by-cycle current limit
Hiccup Mode Restart
Frequency
250 kHz (±5% Oscillator Dithering)
250 kHz
Figure 1. Typical Efficiency Curves of LM25088-1 and LM25088-2 Evaluation Boards
2
Powering and Loading Considerations
Read this entire page prior to attempting to power the evaluation board.
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SNVA383D – November 2008 – Revised April 2013
AN-1931 LM25088 Evaluation Board
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