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© 2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
Rev. 1.0.0 • 3/31/10
AN-8036
FAN5353 / FAN5354 Evaluation Board User Guide
Summary
The FAN5353/54 evaluation board is a compact circuit
including Fairchild’s FAN5353/54 adjustable output (V
OUT
by default set to 1.2V), step-down switching voltage
regulator in a 12-Lead MLP 3x3.5 Package.
One 10µF input capacitor, 2 x 10µF output capacitors, and
one 0.47µH inductor are installed on the board to ensure
tight regulation, low ripple, and excellent transient response.
The FAN5353/54 evaluation board provides probe access
points to all key circuit nodes so that electrical
characteristics can be measured.
Quick Start Connection Guide
1.
C
onnect VIN input power supply as shown in Figure 1.
2.
ENABLE Jumper (J1) factory installed.
3.
Connect the external load between VOUT and PGND.
4.
Kelvin connected input and output voltage sense points
(VIN_S, VOUT_S) are provided.
5.
For FAN5354 only: the jumper “MODE” (J2) in
position
1 selects forced PWM, while in
position
0
(factory installed) selects PFM
Figure 1. Evaluation Board Connection Diagram
