MAX1954A Datasheet, PDF (1/4 Pages) Maxim Integrated Products – MAX1954A Evaluation Kit

19-3351; Rev 0; 7/04
MAX1954A Evaluation Kit
General Description
The MAX1954A evaluation kit (EV kit) demonstrates the
MAX1954A buck controller application circuit. The EV
kit generates a 1.5V output voltage at load currents up
to 5A from a 10.8V to 13.2V input voltage range inde-
pendent of the IC supply voltage. The MAX1954A
switches at 300kHz and has better than 90% efficiency
with the supplied components.
The EV kit comes fully assembled and tested.
Features
♦ Current-Mode Controller
♦ 300kHz Fixed-Frequency PWM
♦ 0.8V Minimum Output Voltage
♦ 10.8V to 13.2V Input Voltage Range
♦ >90% Efficiency
♦ Output Shutdown Mode
♦ All n-Channel MOSFET Design for Low Cost
♦ No Current-Sense Resistor Needed
♦ Foldback Short-Circuit Protection
♦ Thermal-Overload Protection
♦ Small 10-Pin µMAX^® Package
♦ Assembled and Tested
µMAX is a registered trademark of Maxim Integrated Products, Inc.
PART
MAX1954AEVKIT
Ordering Information
TEMP RANGE
0°C to +70°C
IC PACKAGE
10 µMAX
DESIGNATION
C1
C2
C3
C4
C5
C6
C7
C8
C9
QTY
DESCRIPTION
22µF, 16V X5R ceramic capacitor
1 (1210)
TDK C3225X5R1C226K
0.22µF, 10V X7R ceramic capacitor
1 (0603)
Kemet C0603C224M8RAC
1µF, 10V X7R ceramic capacitor
1 (0603)
TDK C1608X7R1A105K
1
180µF, 2V, 9mΩ SP capacitor
Panasonic EEFSX0D181R
0 Not installed (0603)
18pF ±5%, 50V C0H ceramic
1 capacitor (0402)
Taiyo Yuden UMK105CH180JW
470pF ±10%, 50V X7R ceramic
1 capacitor (0402)
Taiyo Yuden UMK105BJ471KW
0.1µF ±10%, 16V X5R ceramic
1 capacitor (0603)
Taiyo Yuden EMK107BJ104KA
1500pF, 50V X7R ceramic
1 capacitor (0603)
TDK C1608X7R1H152K
Component List
DESIGNATION
C10
D1
JU1, JU2
L1
N1
R1
R2
R3
R4
R5
U1
None
QTY
DESCRIPTION
0 Not installed (0603)
1
Schottky diode (SOT23-F)
Central Semiconductor CMPSH1-4
2-pin headers
2 Sullins PTC36SAAN
(36-pin strip, cut to size as needed)
1
2.7µH, 6.6A, 12mΩ inductor
Coilcraft DO3316P-272HC
Dual n-MOSFET 20V, 7.5A, 0.018Ω
1 (8-pin SO)
Fairchild FDS6890A
1 7.15kΩ ±1% resistor (0603)
1 8.06kΩ ±1% resistor (0603)
1 82kΩ ±5% resistor (0603)
1 2Ω ±5% resistor (0603)
0 Not installed (0603)
1 MAX1954AEUB
2 Shunts
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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.