Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsDev KitsPCB design board

General Description

The MAX17062 evaluation kit (EV kit) is a fully assem-

bled and tested surface-mount PCB that provides the

voltages required for active-matrix, thin-film transistor

(TFT), liquid-crystal displays (LCDs). The EV kit con-

tains a pulse-width-modulated (PWM) step-up switch-

ing regulator, a positive single-stage charge pump for

the TFT gate-on supply, and a negative single-stage

charge pump for the TFT gate-off supply.

The EV kit operates from a DC supply voltage of +4.5V

to +5.5V and is configured to operate with a switching

frequency of 1.2MHz. The step-up switching regulator

is configured for a +15V output and can provide 600mA

with a +4.5V input. The positive charge pump is config-

ured for a +29V output providing 30mA. The negative

charge pump is configured for a -15V output providing

30mA.

The MAX17062 EV kit features low-quiescent current

and high-conversion efficiency (90%). The high switch-

ing frequency allows the use of small, surface-mount

components.

Features

o 90% Efficiency

o +2.6V to +5.5V Input Range

o Output Voltage Adjustable from VIN to 20V

o Output Voltages (+4.5V to +5.5V Input)

+15V Output at 600mA

+29V Output at 30mA (Positive Charge Pump)

-15V Output at 30mA (Negative Charge Pump)

o 1.2MHz Switching Frequency (Selectable: 640kHz

or 1.2MHz)

o Programmable Soft-Start

o 0.01µA IC Shutdown Current (typ)

o Fully Assembled and Tested

Evaluates: MAX17062

MAX17062 Evaluation Kit

________________________________________________________________

Maxim Integrated Products

19-2446; Rev 1; 6/08

Component List

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.

Ordering Information

PART TYPE

MAX17062EVKIT+ EV Kit

Denotes lead-free and RoHS compliant.

DESIGNATION QTY DESCRIPTION

C1, C2 2

4.7µF ±10%, 10V X5R ceramic

capacitors (0603)

TDK C1608X5R1A475K

C3 1

1µF ±10%, 6.3V X5R ceramic

capacitor (0603)

Murata GRM188R60J105K

TDK C1068X7R1C105K

C4 1

0.033µF ±10%, 25V X7R ceramic

capacitor (0603)

Murata GRM188R71E333K

TDK C1608X7R1H333K

C5 1

560pF ±5%, 50V C0G ceramic

capacitor (0603)

Murata GRM1885C1H561J

TDK C1608C0G1H561J

C6, C13, C16,

C17

Not installed, ceramic capacitors

(0603)

DESIGNATION QTY DESCRIPTION

C7, C8 2

10µF ±10%, 25V X5R ceramic

capacitors (1210)

Murata GRM32DR61E106K

TDK C3225X5R1E106K

C9 0 N ot i nstal l ed , cer am i c cap aci tor ( 1210)

C10 0

Not installed, aluminum electrolytic

capacitor (SMT: 6.3mm x 6mm)

C11, C15 2

0.22µF ±10%, 50V X7R ceramic

capacitors (0805)

Murata GRM21BR71H224K

TDK C2012X7R1H224K

C12, C14 2

0.1µF ±10%, 50V X7R ceramic

capacitors (0603)

Murata GRM188R71H104K

TDK C1608X7R1H104K

C18 0 N ot i nstal l ed , cer am i c cap aci tor ( 0805)

D1 1

3A, 30V Schottky diode (M-Flat)

Toshi b a C M S 03 ( TE 12L- Q) LE AD FRE E

Summary of content (7 pages)

PAGE 1
9-2446; Rev 1; 6/08 MAX17062 Evaluation Kit The MAX17062 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB that provides the voltages required for active-matrix, thin-film transistor (TFT), liquid-crystal displays (LCDs). The EV kit contains a pulse-width-modulated (PWM) step-up switching regulator, a positive single-stage charge pump for the TFT gate-on supply, and a negative single-stage charge pump for the TFT gate-off supply. The EV kit operates from a DC supply voltage of +4.
PAGE 2
Evaluates: MAX17062 MAX17062 Evaluation Kit Component List (continued) DESIGNATION QTY DESCRIPTION DESIGNATION QTY R1 1 100kΩ ±5% resistor (0603) R2 1 47kΩ ±5% resistor (0603) 2 250mA, 90V dual ultra-fast diodes (SOT23) Central Semiconductor CMPD1001S LEAD FREE (Top Mark: L21) Diodes Inc.
PAGE 3
MAX17062 Evaluation Kit The MAX17062 EV kit contains a high-efficiency, pulsewidth-modulated (PWM), step-up switching regulator, a positive single-stage unregulated charge pump, and a negative single-stage unregulated charge pump. The MAX17062 features a programmable soft-start, loopcompensation pin, and an internal MOSFET switch. The EV kit operates from a +4.5V to +5.5V DC power supply. As configured, the step-up switching regulator generates a +15V output (VOUT) and can provide 600mA with a 4.5V input.
PAGE 4
Evaluates: MAX17062 MAX17062 Evaluation Kit Positive Charge-Pump Configuration As configured, the single-stage positive charge pump generates approximately double the VOUT output voltage at VGON. The charge pump can be reconfigured as a two-stage positive charge pump, providing triple the VOUT output voltage at VGON. This is accomplished by installing capacitors C13, C16, diode D3, and removing resistor R7. See Table 3 for suggested component values. 4 Table 3.
PAGE 5
MAX17062 Evaluation Kit Evaluates: MAX17062 Figure 1.
PAGE 6
Evaluates: MAX17062 MAX17062 Evaluation Kit Figure 2. MAX17062 EV Kit Component Placement Guide— Component Side Figure 3. MAX17062 EV Kit PCB Layout—Component Side Figure 4.
PAGE 7
MAX17062 Evaluation Kit PAGES CHANGED REVISION NUMBER REVISION DATE 0 11/07 Initial release — 1 6/08 Schematic changes: added EP to U1 and changed ground of C3 from PGND to AGND. 5 DESCRIPTION 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.