Page 2
Rev 1.0, Jun 1, 2022
Patent Protected: US 9,729,059 B1; US 10,193,442 B2
Copyright© 2018–20 TDK Corporation. All rights reserved.
All registered trademarks and trademarks are the property of their respective owners.
Data and specifications subject to change without notice.
EV1703-3300-A
Introduction
This user guide describes the evaluation board provided for the FS1703 µPOL™ product.
The board generates an output voltage (V
OUT
) of 3.3V for loads of 0–3A from an input voltage (PV
IN
) of 5V.
Specifications
Input voltage (PV
IN
) = +5V
Output voltage (V
OUT
) = +3.3V
Output load (I
O
) = 0–3A
Switching frequency (F
SW
) = 580 kHz
Output capacitance (C
O
) = 3x22µF (MLCC)
In put capacitance (C
IN
) = 2x22µF (MLCC)
Dimensions (width x length x thickness) = 63 x 84 x 1.5mm
Connections
Name
Identifier
Description
PV
IN
J1
Input voltage (+5V)
GND
J2
Ground for input voltage
V
OUT
J8
Output voltage (+3.3V)
GND
J7
Ground for output voltage
V
CC
TP2
Internal supply (V
CC
) – output of an LDO regulator
GND
TP3
Ground for internal supply
En
TP11
Enable
PG
TP12
Power Good
The board is configured for a single input supply. An internal low drop-out regulator generates the internal supply (V
CC
)
from PV
IN
. The Enable (En) input is connected to PV
IN
through a resistor divider, so that no Enable signal is needed.
Operation
To use the evaluation board:
1.
Connect a well-reg5V input supply to PV
IN
(J1) and GND (J2).
2.
Connect a load of 0–3A to V
OUT
(J8) and GND (J7).
