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650 kHz/1.3 MHz Step-Up Converter

Evaluation Board Documentation

EVAL-ADP1612/ADP1613

Rev. A

Evaluation boards are only intended for device evaluation and not for production purposes.

Evaluation boards are supplied “as is” and without warranties of any kind, express, implied, or

statutory including, but not limited to, any implied warranty of merchantability or fitness for a

particular purpose. No license is granted by implication or otherwise under any patents or other

intellectual property by application or use of evaluation boards. Information furnished by Analog

Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog

Devices for its use, nor for any infringements of patents or other rights of third parties that may result

from its use. Analog Devices reserves the right to change devices or specifications at any time

without notice. Trademarks and registered trademarks are the property of their respective owners.

Evaluation boards are not authorized to be used in life support devices or systems.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

www.analog.com

FEATURES

Input voltage range

1.8 V to 5.5 V for the ADP1612-5-EVALZ

2.5 V to 5.5 V for the ADP1613-12-EVALZ

Output voltage

5 V for ADP1612-5-EVALZ

12 V for ADP1613-12-EVALZ

Shunt-selectable 1.3 MHz or 650 kHz switching frequency

Jumper for enable/shutdown control

Components optimized for the indicated output voltages

GENERAL DESCRIPTION

The ADP1612/ADP1613 evaluation module is a complete step-

up dc-to-dc switching converter application with components

selected to allow operation over the full range of input and load

conditions for the 5 V (ADP1612) and 12 V (ADP1613) output

voltages. The evaluation boards can be adjusted for different

output voltages by changing R1 and R2. In addition, L1, D1, C3,

and R3 may need to be adjusted and should be recalculated to

ensure stable operation.

The ADP1612/ADP1613 evaluation module operates in

pulse-width modulation (PWM) current mode with up to 94%

efficiency. The shunt-selectable switching frequency and PWM

current-mode architecture allow for excellent transient response,

easy noise filtering, and the use of small, cost-saving external

inductors and capacitors. Other key features include a 33 nF

soft start capacitor, undervoltage lockout (UVLO), thermal

shutdown (TSD), and jumper selected enable. The evaluation

module demonstrates the operation and performance of the

ADP1612/ADP1613.

This data sheet includes I/O descriptions, setup instructions,

the schematic, and the PCB layout drawings for the ADP1612/

ADP1613 step-up converter evaluation module. Use this data

sheet in conjunction with the ADP1612/ADP1613 data sheet

available on www.analog.com.

TYPICAL APPLICATION CIRCUIT

ADP1612/

ADP1613

VIN

FREQ

COMP

GND

OFF

1.3MHz

650kHz

(DEFAULT)

OUT

COMP

06772-002

Figure 1. Step-Up Regulator Configuration

Summary of content (8 pages)

PAGE 1
650 kHz/1.3 MHz Step-Up Converter Evaluation Board Documentation EVAL-ADP1612/ADP1613 The ADP1612/ADP1613 evaluation module operates in pulse-width modulation (PWM) current mode with up to 94% efficiency. The shunt-selectable switching frequency and PWM current-mode architecture allow for excellent transient response, easy noise filtering, and the use of small, cost-saving external inductors and capacitors.
PAGE 2
EVAL-ADP1612/ADP1613 TABLE OF CONTENTS Features .............................................................................................. 1 Evaluation Board Schematic and Layout .......................................5 General Description ......................................................................... 1 Layout Guidelines..........................................................................5 Typical Application Circuit .............................................................
PAGE 3
EVAL-ADP1612/ADP1613 EVALUATION BOARD HARDWARE The ADP1612/ADP1613 evaluation module is fully assembled and tested. The following sections describe the various connectors on the board, the proper evaluation setup, and the testing capabilities of the evaluation module. VOUT Test Bus INPUT/OUTPUT CONNECTORS VIN Test Bus EN Test Bus The VIN test bus connects the positive input supply voltage to the VIN pin.
PAGE 4
EVAL-ADP1612/ADP1613 PERFORMANCE EVALUATION Line Transient The following sections discuss tests and the resulting oscilloscope waveforms. Oscilloscope waveforms and typical performance characteristics are provided in the ADP1612/ ADP1613 data sheet. The line transient performance is evaluated by generating a high speed voltage transient on the input (VIN) and observing the behavior of the evaluation module at the inductor (SW) and the output (VOUT.
PAGE 5
EVAL-ADP1612/ADP1613 EVALUATION BOARD SCHEMATIC AND LAYOUT L1 SW ADP1612/ ADP1613 VIN EN 6 VIN 3 EN 7 FREQ 8 SS U1 VOUT D1 SW 5 R1 FB 2 C7 C8 C9 R2 COMP 1 GND C1 C4 R3 4 C3 C2 C5 C6 GND 08527-008 FREQ R4 Figure 7. ADP1612/ADP1613Boost Application Evaluation Board Schematic LAYOUT GUIDELINES For high efficiency, good regulation, and stability, a welldesigned printed circuit board (PCB) layout is essential.
PAGE 6
EVAL-ADP1612/ADP1613 ORDERING INFORMATION BILL OF MATERIALS Table 1. ADP1612 (VOUT = 5 V) Qty 1 1 1 1 1 1 1 1 1 1 1 10 1 Reference Designator U1 L1 D1 C1 C2 C3 C4 C5 C6 C7 C8 C9 R1 R2 R3 FREQ/R4 EN, VIN, SW, VOUT, GND Description ADP1612 step-up converter Inductor, 4.
PAGE 7
EVAL-ADP1612/ADP1613 ORDERING GUIDE Model1 ADP1612-5-EVALZ ADP1612-BL1-EVZ ADP1613-12-EVALZ ADP1613-BL1-EVZ 1 ESD CAUTION Description ADP1612 Evaluation Board, 5 V Output Voltage Configuration ADP1612 Blank Evaluation Board ADP1613 Evaluation Board, 12 V Output Voltage Configuration ADP1613 Blank Evaluation Board Z = RoHS Compliant Part. Rev.