MAX5097AEVKIT+ Maxim Integrated Products, MAX5097AEVKIT+ Datasheet

MAX5097AEVKIT+

Manufacturer Part Number

MAX5097AEVKIT+

Description

EVAL KIT FOR MAX5097A

Manufacturer

Maxim Integrated Products

Datasheets

1.MAX5097AATE.pdf (21 pages)

2.MAX5097AEVKIT.pdf (6 pages)

Specifications of MAX5097AEVKIT+

Main Purpose

DC/DC, Step Down

Outputs And Type

1, Non-Isolated

Voltage - Output

3.3V

Current - Output

600mA

Voltage - Input

5 ~ 40V

Regulator Topology

Buck

Frequency - Switching

330kHz

Board Type

Fully Populated

Utilized Ic / Part

MAX5097A

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Power - Output

Lead Free Status / Rohs Status

Lead free / RoHS Compliant

Current page: 1 of 6
Download datasheet (122Kb)

The MAX5097A evaluation kit (EV kit) demonstrates the

MAX5097A in a standard application circuit demon-

strating high efficiency. The EV kit circuit features a

MAX5097A IC in a 16-pin TQFN package. The EV kit

can operate from a 5V to 40V input source.

The MAX5097A EV kit includes a current-mode DC-DC

step-down regulator (Buck Mode) and a selectable low-

quiescent-current LDO regulator for operation at light-

load (LDO Mode). The step-down regulator provides a

3.3V output with up to 600mA output current. In LDO

Mode, the MAX5097A IC provides up to 100mA output

current. The EV kit circuit’s step-down regulator oper-

ates at a switching frequency of 330kHz, thus allowing

the use of small ceramic capacitors at the output. The

MAX5097A is capable of synchronizing to an external

digital clock.

The MAX5097A EV kit can be reconfigured for other

output voltages by selecting appropriate external com-

ponents. The EV kit circuit features soft-start, output

current-limit, and an open-drain active-low reset output

PCB pad.

19-0718; Rev 0; 1/07

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.

D ESIG N AT IO N QTY

________________________________________________________________ Maxim Integrated Products

150µF, 50V electrolytic capacitor

(8mm x 10.2mm)

Panasonic EEVFK1H151P

0.22µF ±10%, 50V X5R ceramic

capacitor (0805)

Murata GRM21BR71H224K

22µF ±20%, 6.3V X5R ceramic

capacitor (1206)

Murata GRM31CR60J226M

1200µF ±5%, 50V C0G ceramic

capacitor (0603)

Murata GRM1885C1H122J

22pF ±5%, 50V C0G ceramic

capacitor (0603)

Murata GRM1885C1H220J

0.01µF ±10%, 50V X7R ceramic

capacitor (0603)

Murata GRM188R71H103K

1µF ±10%, 10V X5R ceramic

capacitor (0603)

Murata GRM188R61A105K

General Description

DESCRIPTION

MAX5097A Evaluation Kit

♦ ♦ 5V to 40V Input Voltage (Buck Mode)

♦ ♦ 4V to 40V Input Voltage (LDO Mode)

♦ ♦ 3.3V Output at Up to 600mA (Buck Mode)

♦ ♦ Low Quiescent Current 3.3V Output at Up to

♦ ♦ Configurable Output Voltage

♦ ♦ 330kHz Switching Frequency

♦ ♦ Capable of Synchronizing to an External Clock

♦ ♦ Open-Drain RESET Output PCB Pad

♦ ♦ Surface-Mount Components

♦ ♦ Fully Assembled and Tested

+ Denotes a lead-free and RoHS-compliant EV kit.

* This limited temperature range applies to the EV kit PCB only.

The MAX5097A IC temperature range is -40°C to +125°C.

D ESIG N AT IO N QTY

MAX5097AEVKIT+

100mA (LDO Mode)

R4, R5, R7

JU1, JU2

JU3

—

PART

0.047µF ±10%, 50V X7R ceramic

capacitor (0603)

Murata GRM188R71H473K

2.0A, 60V high-speed switching diode

(SMA)

Diodes Inc MURS120-13-F

2-pin headers

3-pin header

22µH, 1.6A inductor

Sumida CDRH8D28-220NP

Not installed, resistor (0603)

0Ω ±5% resistor (0603)

100kΩ ±1% resistor (0603)

100kΩ ±5% resistors (0603)

10kΩ ±5% resistor (0603)

40V input, 330kHz step-down

converter with LDO

MAX5097AATE+

(16-pin, 5mm x 5mm thin QFN-EP)

Shunts

PCB: MAX5097AEVKIT+

Ordering Information

TEMP RANGE

0°C to +70°C*

Component List

DESCRIPTION

Features

IC PACKAGE

16 TQFN-EP

Related parts for MAX5097AEVKIT+

MAX5097AEVKIT+ Summary of contents

Page 1

... R4, R5 100kΩ ±5% resistors (0603 10kΩ ±5% resistor (0603) 40V input, 330kHz step-down converter with LDO U1 1 MAX5097AATE+ (16-pin, 5mm x 5mm thin QFN-EP) — 3 Shunts — 1 PCB: MAX5097AEVKIT+ Features IC PACKAGE 16 TQFN-EP Component List DESCRIPTION 1 ...

Page 2

MAX5097A Evaluation Kit Component Suppliers SUPPLIER PHONE Diodes Inc. 805-446-4800 www.diodes.com Murata 770-436-1300 www.murata.com Panasonic 714-373-7366 www.panasonic.com Sumida 847-545-6700 www.sumida.com Note: Indicate that you are using the MAX5097A when contact- ing these component suppliers. The MAX5097A EV kit is fully ...

Page 3

Clock Synchronization The MAX5097A EV kit has a PCB pad that enables the circuit to synchronize with an external TTL square-wave clock source. The 2-pin jumper, JU2, is provided to connect the MAX5097A SYNC pin to SGND for noise immunity. ...

Page 4

MAX5097A Evaluation Kit VIN PGND BP R7 100kΩ LDO/BUCK JU1 SGND SYNC JU2 SGND 100kΩ C7 1.0μF VOUT R4 100kΩ RESET Figure 1. MAX5097A EV Kit Schematic 4 _______________________________________________________________________________________ VIN C2 C1 0.22μF 150μF 50V ...

Page 5

Figure 2. MAX5097A EV Kit Component Placement Guide— Component Side Figure 4. MAX5097A EV Kit PCB Layout—GND Layer 2 _______________________________________________________________________________________ MAX5097A Evaluation Kit Figure 3. MAX5097A EV Kit PCB Layout—Component Side 5 ...

Page 6

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 6 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products Janet Freed Figure 6. MAX5097A EV Kit PCB Layout— ...

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