Datasheet

DESIGNATION QTY DESCRIPTION
R9 1
13kI Q1% resistor (0603)
R10 1
10kI Q5% resistor (0603)
R11 1
51.1kI Q1% resistor (0603)
U1 1
Synchronous buck converter
(16 TSSOP-EP)
Maxim MAX16955AUE/V+
SUPPLIER PHONE WEBSITE
Diodes Incorporated 805-446-4800 www.diodes.com
Fairchild Semiconductor 888-522-5372 www.fairchildsemi.com
IRC, Inc. 361-992-7900 www.irctt.com
Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com
Panasonic Corp. 800-344-2112 www.panasonic.com
TDK Corp. 847-803-6100 www.component.tdk.com
Würth Electronik GmbH & Co. KG 201-785-8800 www.we-online.com
DESIGNATION QTY DESCRIPTION
— 2 Shunts
— 1
PCB: MAX16955 EVALUATION
KIT
_________________________________________________________________ Maxim Integrated Products 2
MAX16955 Evaluation Kit
Evaluates: MAX16955
Quick Start
Required Equipment
• MAX16955 EV kit
• 12V, 1A power supply
• An electronic load capable of sinking 1A (e.g.,HP6060B)
• Two digital voltmeters (DVMs)
Procedure
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation:
1) Verify that a shunt is installed across pins 2-3 on
jumper JU1.
2) Verify that a shunt is not installed across jumper JU2
(output enabled).
3) Connect the load across the OUT and PGND test
points.
4) Connect the first DVM across the SUP and PGND test
points.
5) Connect the second DVM across the OUT and PGND
test points.
6) Connect the power supply’s positive and ground
terminals to the SUP and PGND test points,
respectively.
7) Turn on the power supply and set to 12V with a 1A
current limit.
8) Enable the 1A electronic load.
9) Verify that the red LED (D2) is off and the DVM at OUT
measures 5V.
Detailed Description of Hardware
The MAX16955 EV kit is a fully assembled and tested
PCB that contains all the components neces sary to
evaluate the performance of the MAX16955 synchronous
PWM step-down controller. The device is available in a
16-pin TSSOP package and features an exposed pad for
thermal dissipation. The device has a 3.5V to 36V input
voltage range. The EV kit circuit is designed to operate
from a single DC power supply ranging from 6V to 36V.
The EV kit is configured to output 5V and provides up to
5A load current at the OUT and PGND test points. The
switching frequency is set to 400kHz using resistor R8.
The peak inductor current is set to 5.3A using resistor
R4. The EV kit can be configured to operate in forced
fixed-frequency PWM mode, low-quiescent current SKIP
mode, or external synchroniza tion using jumper JU1. The
EV kit features test points to evaluate the enable (EN)
feature and to monitor the BIAS output volta ge. A
red LED (D2) is available to monitor the power-good
(PGOOD) output signal.
Component Suppliers
Component List (continued)
Note: Indicate that you are using the MAX16955 when contacting these component suppliers.