19-2963; Rev 0a; 8/03
MAX8546 Evaluation Kit
General Description
Features
o 10V to 24V Input Range (MAX8546)
o 300kHz Operation
The MAX8546 evaluation kit (EV kit) is a fully assembled
and tested circuit board that contains all the compo-
nents necessary to evaluate the performance of the
MAX8546 step-down DC-DC converter.
o 2.5V at 6A Output
The EV kit comes with a MAX8546 IC installed. The EV
kit’s circuit is optimized for a 10V to 24V input range
and 300kHz switching frequency, and delivers 2.5V
at 6A to the output. To evaluate the MAX8545 or
MAX8548, replace the IC with the desired part and
refer to the MAX8545/MAX8546/MAX8548 data sheet to
select the appropriate components for the EV kit.
o Foldback Short-Circuit Protection
o Low-Cost Solution
o Evaluates the MAX8545, MAX8546, and MAX8548
o Fully Assembled and Tested
Ordering Information
PART
TEMP RANGE
IC PACKAGE
MAX8546EVKIT
0°C to +70°C
10 µMAX
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
100mA, 30V Schottky diodes
(SOT23)
Central Semiconductor CMPSH-3
1µF ± 10%, 10V X5R ceramic
capacitor (0603)
TDK C1608X5R1A105K
D1, D2
L1
2
1
C1
1
4µH, 8.3A inductor
Sumida CEP125-4R0
470µF ± 2± 0%, 35V aluminum
electrolytic capacitors
(10mm ✕ 22mm)
C2, C3
2
Dual N-channel MOSFET (8-pin SO)
(LSFET 8.6A, 30V, 0.020Ω
HSFET 6.3A, 30V, 0.035Ω)
Sanyo 35MV470AX
N1
1
1µF ± 10%, 50V X7R ceramic
capacitors (1206)
Fairchild Semiconductor FDS6982
C4, C12
2
3
TDK C3216X7R1H105K
200mA, 40V NPN bipolar transistor
(SOT23)
Fairchild Semiconductor MMBT3904
Q1
1
0.1µF ± 10%, 50V X7R ceramic
capacitors (0603)
C5, C8, C9
TDK C1608X7R1H104K
R1
R2
1
1
1
1
2
1
1
1
1
1
8.66kΩ ± 1% resistor (0805)
4.02kΩ ± 1% resistor (0805)
10Ω ± 5% resistor (0805)
68kΩ ± 5% resistor (0805)
10kΩ ± 5% resistors (0805)
0Ω ± 5% resistor (0603)
3Ω ± 5% resistor (0603)
3Ω ± 5% resistor (1206)
MAX8546EUB (10-pin µMAX)
MAX8546 PC board
1500µF ± 2± 0%, 6.3V aluminum
electrolytic capacitors
(10mm ✕ 20mm)
R3
C6, C7
2
R4
Sanyo 6MV1500AX
R5, R6
R7
6800pF ± 10%, 50V X7R ceramic
capacitor (0603)
TDK C1608X7R1H682K
C10
C11
C13
1
0
1
R8
R9
Not installed, capacitor (0603)
U1
None
1500pF ± 10%, 50V X7R ceramic
capacitor (0603)
TDK C1608X7R1H152K
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.