MAX17623EVKIT [MAXIM]
2.9V to 5.5V Input-Voltage Range;
| 型号： | MAX17623EVKIT |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | 2.9V to 5.5V Input-Voltage Range |
| 文件： | 总13页 (文件大小：1251K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MAX17623/MAX17624
Evaluation Kits
Evaluates: MAX17623/MAX17624
Converters in Application
General Description
Features
The MAX17623/MAX17624 evaluation kits (EV kits)
provide a proven design to evaluate the performance of
the MAX17623/MAX17624 converters. Each of these
devices operates over an input range from 2.9V to 5.5V
and delivers up to 1A output current. The devices are
configured to demonstrate optimum performance and
component sizes in the EV kits.
•
•
2.9V to 5.5V Input-Voltage Range
MAX17623 Offers High 92.2% Efficiency (V = 3.3V,
IN
V
= 1.5V, I
= 300 mA)
OUT
OUT
MAX17624 Offers High 94.5% Efficiency (V = 5V,
•
IN
V
= 3.3V, I
= 500 mA)
OUT
OUT
•
•
•
Selectable PWM and PFM Modes of Operation
Internal 1ms Soft-Start Time
PGOOD Output with Pullup Resistor to Respective
Input Voltages
Low-Profile, Surface-Mount Components
Proven PCB Layout
Fully Assembled and Tested
The MAX17623 converter delivers up to 1A at a
switching frequency of 2MHz. The converter is
configured for a 1.5V output over a 2.9V to 5.5V input
range.
•
•
•
The MAX17624 converter delivers up to 1A at a
switching frequency of 4MHz. The converter is
configured for a 3.3V output over a 3.6V to 5.5V input
range.
Ordering Information at end of data sheet.
The EV kits feature provisions for selecting Mode of
operation (PWM/PFM), enabling or disabling the output
and PGOOD signal. The MAX17623/MAX17624
converter data sheet provides a complete description of
the parts, that should be read in conjunction with this
data sheet prior to operating the EV kits.
EV Kits Top View
319-100643; Rev 1; 12/20
MAX17623/MAX17624
Evaluation Kits
Evaluates: MAX17623/MAX17624
Converters in Application
Quick Start
Configuration Diagram
+
V
-
VIN
VOUT
GND
+
-
+
-
A
A
DC
MAX17623 EV KIT/
MAX17624 EV KIT
POWER
SUPPLY
LOAD
GND
Figure 1. MAX17623/MAX17624 EV Kits Setup Diagram
Required Equipment
• One 2.9V to 5.5V DC, 1A power supply
• Load resistors capable of sinking up to 1A at 1.5V and 3.3V
• Digital multimeter (DMM)
Procedure
A typical bench setup for MAX17623/MAX17624 EV Kits is shown in Figure 1.
The EV kits are fully assembled and tested. Follow the steps below to verify and test individual converters operation.
Caution: Do not turn on power supply until all connections are completed.
1. Disable the power supply and set the input power supply at a voltage between 2.9V and 5.5V for MAX17623, or
between 3.6V to 5.5V for MAX17624.
2. Connect the positive terminal and negative terminal of the power supply to the VIN pad and its adjacent GND pad of
the converter under evaluation, respectively.
3. Connect a maximum 1A resistive load across the VOUT pad and its nearest GND pad of the corresponding converter.
4. Verify that shunts are installed in default position on jumpers (JU101 and JU201) (see Table 1 for details).
5. Select the shunt position on jumpers (JU102, JU202) according to the required mode of operation (see Table 2 for
details).
6. Connect the digital multimeter (in voltage measurement mode) across the VOUT and its respective GND pad.
7. Turn on the input power supply.
8. Verify that the digital multimeter displays 1.5V for MAX17623, and 3.3V for MAX17624 output terminal voltages,
respectively with respect to GND.
www.maximintegrated.com
Maxim Integrated | 2
MAX17623/MAX17624
Evaluation Kits
Evaluates: MAX17623/MAX17624
Converters in Application
Detailed Description
The MAX17623/MAX17624 EV kits are designed to demonstrate the salient features of the MAX17623/MAX17624 power
converters. The EV kits consist of typical application circuits of two different converters. Each of these circuits are
electrically isolated from each other and hosted on the same PCB. Each of the converters can be evaluated by powering
them from their respective input terminals. Individual converter settings can be adjusted to evaluate their performance
under different operating conditions.
MODE Selection
The MAX17623/MAX17624 supports PWM and PFM modes of operation. In the EV kits, leave the jumpers (JU102,
JU202) open for operating the converters in PFM mode at light-load. Install shunts to configure the converters in PWM
mode. See Table 2 for jumpers (JU102 and JU202) settings.
Adjusting Output Voltage
The MAX17623 supports a 0.8V to 1.5V adjustable output voltage and the MAX17623 EV kit output voltage is preset to
1.5V.
The MAX17624 supports a 1.5V to 3.3V adjustable output voltage and the MAX17624 EV kit output voltage is preset to
3.3V.
Output voltage can be programmed using the feedback resistive-divider from VOUT to FB to GND (R101 and R102 for
MAX17623, and R201 and R202 for MAX17624). For programming the output to a different voltage, use values calculated
based on the guidelines given in the MAX17623/MAX17624 converter data sheet.
Output Capacitor Selection
X7R ceramic output capacitors are preferred due to their stability over temperature in industrial applications. The required
output capacitors (C104 and C204) are selected based on the values given in the MAX17623/MAX17624 converter data
sheet as 22μF/6.3V and 10μF/6.3V, respectively.
Input Capacitor Selection
The input capacitors (C103 and C203) serve to reduce current peaks drawn from the input power supply and reduce
switching frequency ripple at the input. The input capacitance must be greater than or equal to the value calculated by
the equations given in the MAX17623/MAX17624 converter data sheet. Input capacitors (C103 and C203) are chosen to
be 2.2μF/10V.
Hot Plug-In and Long cables
The MAX17623/MAX17624 EV kit PCB provides optional Tantalum capacitors (C102 and C202, 47μF/8V) to dampen
input-voltage peaks and oscillations that can arise during hot-plug-in and/or due to long input cables. These capacitors
limit the peak voltage at the input of the device when the EV kits are powered directly from a precharged capacitive source
or an industrial backplane PCB. Long input cables, between input power source and the EV kits circuit can cause input-
voltage oscillations due to the inductance of the cables. The equivalent series resistance (ESR) of the Tantalum capacitor
helps damp out the oscillations caused by long input cables. Further, capacitors C101, C106, C201, C206 (0.1μF/100V)
placed near the edge of the board near the input and output terminals, help in attenuating high frequency noise.
www.maximintegrated.com
Maxim Integrated | 3
MAX17623/MAX17624
Evaluation Kits
Evaluates: MAX17623/MAX17624
Converters in Application
Table 1. EN Jumper Description (JU101, JU201)
SHUNT POSITION
EN PIN
OUTPUT
Enabled
1–2*
2–3
Connected to V
IN
Connected to GND
Disabled
*Default Position
Table 2. MODE Jumper Description (JU102, JU202)
SHUNT
MODE PIN
MODE
Operates in PWM Mode in all load
conditions
1–2
Connected to GND
Operates in PFM Mode in light-load
conditions
Not Installed*
Unconnected
*Default Position
Ordering Information
PART NUMBER
TYPE
EV Kit
MAX17623EVKIT#
EV Kit
MAX17624EVKIT#
# Denotes RoHS compliance.
Component Suppliers
SUPPLIER
Murata Americas
Vishay
Panasonic
TDK Corp.
WEBSITE
www.murata.com
www.vishay.com
www.panasonic.com
www.tdk.com
Kemet
www.kemet.com
www.maximintegrated.com
Maxim Integrated | 4
MAX17623/MAX17624
Evaluation Kits
Evaluates: MAX17623/MAX17624
Converters in Application
MAX17623/MAX17624 EV Kits Performance
(V = 3.3V for MAX17623, V = 5V for MAX17624, T = 25ºC, unless otherwise noted.)
IN
IN
A
www.maximintegrated.com
Maxim Integrated | 5
MAX17623/MAX17624
Evaluation Kits
Evaluates: MAX17623/MAX17624
Converters in Application
MAX17623/MAX17624 EV Kits Performance
(V = 3.3V for MAX17623, V = 5V for MAX17624, TA = 25ºC, unless otherwise noted.)
IN
IN
www.maximintegrated.com
Maxim Integrated | 6
MAX17623/MAX17624
Evaluation Kits
Evaluates: MAX17623/MAX17624
Converters in Application
MAX17623/MAX17624 EV Kits Performance
(V = 3.3V for MAX17623, V = 5V for MAX17624, TA = 25ºC, unless otherwise noted.)
IN
IN
www.maximintegrated.com
Maxim Integrated | 7
MAX17623/MAX17624
Evaluation Kits
Evaluates: MAX17623/MAX17624
Converters in Application
MAX17623/MAX17624 EV Kits Bill of Materials
MANUFACTURER PART
NUMBER
ITEM QTY
DESIGNATOR
DESCRIPTION
TDK
1
4
2
2
1
1
1
1
1
1
2
C101, C106, C201, C206
0.1µF±10%, 10V, X7R, ceramic capacitor (0402)
47µF±20%, 8V, Tantalum capacitor (3528)
2.2µF±10%, 10V, X7R, ceramic capacitor (0603)
22µF±20%, 6.3V, X7R, ceramic capacitor (0805)
10µF±10%, 6.3V, X7R, ceramic capacitor (0805)
1.5µH±20%, 2.7A, Inductor (2520)
C1005X5R1A104050BA
Kemet
T520B476M008ATE035
Murata
GRM188R71A225KE15
Murata
GRM21BZ70J226ME44
Murata
GRM21BR70J106K
Murata DFE252012F-
1R5M
Murata DFE252012F-
1R0M
Vishay
CRCW04023322FK
Vishay
2
C102, C202
C103, C203
C104
3
4
5
C204
6
L101
7
L201
1µH±20%, 3.8A, Inductor (2520)
8
R101
33.2kΩ±1% resistor (0402)
9
R201
118kΩ±1% resistor (0402)
CRCW0402118KFK
Vishay
CRCW040237K4FK
Panasonic ERJ-
2RKF1003X
10
R102, R202
37.4kΩ±1% resistor (0402)
11
12
13
2
1
1
R103, R203
U101
100kΩ±1% resistor (0402)
MAX17623 TDFN8-EP
MAX17624 TDFN8-EP
MAX17623ATA+
MAX17624ATA+
U201
www.maximintegrated.com
Maxim Integrated | 8
MAX17623/MAX17624
Evaluation Kits
Evaluates: MAX17623/MAX17624
Converters in Application
MAX17623/MAX17624 EV Kits Schematic Diagram
www.maximintegrated.com
Maxim Integrated | 9
MAX17623/MAX17624
Evaluation Kits
Evaluates: MAX17623/MAX17624
Converters in Application
MAX17623/MAX17624 EV Kits PCB Layout Diagrams
MAX17623/MAX17624 EV Kits PCB Layout—Top Silkscreen
MAX17623/MAX17624 EV Kits PCB Layout—Top Layer
www.maximintegrated.com
Maxim Integrated | 10
MAX17623/MAX17624
Evaluation Kits
Evaluates: MAX17623/MAX17624
Converters in Application
MAX17623/MAX17624 EV Kits PCB Layout Diagrams
MAX17623/MAX17624 EV Kits PCB Layout—Layer 2
MAX17623/MAX17624 EV Kits PCB Layout—Layer 3
www.maximintegrated.com
Maxim Integrated | 11
MAX17623/MAX17624
Evaluation Kits
Evaluates: MAX17623/MAX17624
Converters in Application
MAX17623/MAX17624 EV Kits PCB Layout Diagrams
MAX17623/MAX17624 EV Kits PCB Layout—Bottom Layer
www.maximintegrated.com
Maxim Integrated | 12
MAX17623/MAX17624
Evaluation Kits
Evaluates: MAX17623/MAX17624
Converters in Application
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
CHANGED
DESCRIPTION
0
1
12/20
12/20
Release for Market Intro
Updated the Ordering Information table
—
4
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
© 2020 Maxim Integrated Products, Inc.
相关型号：
©2020 ICPDF网 联系我们和版权申明