MAX1748EVKIT Maxim Integrated Products, MAX1748EVKIT Datasheet

MAX1748EVKIT

Manufacturer Part Number

MAX1748EVKIT

Description

Power Management Modules & Development Tools MAX1748 EVAL KIT MAX1748 EVAL KIT

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX1748EVKIT.pdf (6 pages)

Specifications of MAX1748EVKIT

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Current page: 1 of 6
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The MAX1748 evaluation kit (EV kit) is a fully assembled

and tested surface-mount circuit board that contains a

boost switching regulator and two charge-pump volt-

age-regulator circuits. The boost switching circuit is

configured for a +10V output that provides up to 200mA

of current from a supply voltage of +2.7V to +5.5V.

The positive charge-pump circuit is configured for a

+15V output that provides >20mA of current. The nega-

tive charge-pump circuit is configured for a -5V output

and provides >20mA of current. Power for either or

both charge-pump inputs can be provided from the

+2.7VDC to +5.5VDC source or from the boost switch-

ing-regulator output.

The MAX1748 EV kit demonstrates low-quiescent cur-

rent and high efficiency (over 86%) for maximum bat-

tery life. Operation at 1MHz allows the use of tiny sur-

face-mount components. The MAX1748 TSSOP pack-

age (1.1mm max) with low-profile external components

allows this circuit to be less than 1.2mm high. The

MAX1748 EV kit can also be used to evaluate the

MAX1779 IC.

19-1740; Rev 3; 11/04

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

DESIGNATION

C2, C4, C5, C6,

C1, C16, C17,

C7, C15, C24

C18, C21

C22, C23

QTY

________________________________________________________________ Maxim Integrated Products

General Description

3.3µF, 10V X7R ceramic capacitors

(1210)

Taiyo Yuden LMK325BJ335KD

0.1µF, 16V X7R ceramic capacitors

(0603)

Taiyo Yuden EMK107BJ104MA

Not installed (R)

Sprague 592D336X0016R2T

recommended

1µF, 16V X7R ceramic capacitors

(1206)

Murata GRM319R71C105K

470pF, 50V C0G ceramic

capacitor (0603)

Murata GRM1885C1H47IJ

0.22µF, 10V X7R ceramic

capacitor (0603)

Taiyo Yuden LMK107BJ224KA

DESCRIPTION

MAX1748 Evaluation Kit

♦ +2.7V to +5.5V Input Range (as Configured)

♦ Output Voltages

♦ Outputs Are Adjustable with Resistors

♦ >85% Efficiency

♦ Internal MOSFET Switches

♦ 0.1µA (typ) IC Shutdown Current

♦ 1MHz Boost Switching Frequency,

♦ Low Profile

♦ Evaluates MAX1779 (Component Replacement

♦ Surface-Mount Components

♦ Fully Assembled and Tested

MAX1748EVKIT

DESIGNATION

500kHz Charge-Pump Switching Frequency

Required)

R2, R4, R6

C10–C13

C19, C20

D2, D3

D4, D5

+10V Output at 200mA (Boost Switching)

+15V Output >20mA (Positive Charge-Pump

Regulator)

-5V Output >20mA (Negative Charge-Pump

Regulator)

C14

PART

QTY

TEMP RANGE

Ordering Information

0°C to +70°C

Not installed (0805)

0.15µF, 25V X7R ceramic

capacitor (1206)

Taiyo Yuden TMK316BJ154MD

Not installed, ceramic capacitors

(0603)

1.0A, 30V Schottky diode (S-flat)

Toshi b a C RS 02 or N i hon E P 10QY 03

200mA, 25V Schottky diodes

(SOT23)

Fairchild BAT54S

Not installed (SOT23)

6.8µH inductor

Coilcraft LPO2506IB-682

348kΩ ±1% resistor (0805)

549kΩ ±1% resistor (0805)

49.9kΩ ±1% resistors (0805)

200kΩ ±1% resistor (0805)

Component List

DESCRIPTION

16 TSSOP

IC PACKAGE

Features

Related parts for MAX1748EVKIT

MAX1748EVKIT Summary of contents

Page 1

... Charge-Pump Switching Frequency ♦ Low Profile ♦ Evaluates MAX1779 (Component Replacement Required) ♦ Surface-Mount Components ♦ Fully Assembled and Tested Ordering Information PART TEMP RANGE MAX1748EVKIT 0°C to +70°C Component List DESIGNATION QTY C10–C13 0 Not installed (0805) 0.15µF, 25V X7R ceramic ...

Page 2

MAX1748 Evaluation Kit Component List (continued) DESIGNATION QTY R7 0 Not installed (0805) R8 1MΩ ±5% resistors (0805 MAX1748EUE (16-pin TSSOP) JU1, JU4, JU5 3 3-pin headers None 3 Shunts (JU1, JU4, JU5) None 1 MAX1748 ...

Page 3

Table 1. Jumper JU1 Functions SHDN PIN SHUNT LOCATION Connected 1-2 to PIN Connected 2-3 to GND Table 2. Jumper JU2 Functions SHUNT LOCATION R3 1-2 Connected (PC trace shorts 1- 2-3 Connected (cut open trace across to ...

Page 4

MAX1748 Evaluation Kit Table 4. Jumper JU4 Functions SHUNT LOCATION SUPP PIN Connected 1-2 to PIN Connected 2 Table 5. Jumper JU5 Functions SHUNT LOCATION SUPN PIN Connected 1-2 to PIN Connected 2 Table 6. Component ...

Page 5

Figure 1. MAX1748 EV Kit Schematic _______________________________________________________________________________________ MAX1748 Evaluation Kit 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 © 2004 Maxim Integrated Products 1.0" ...

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