EV1593DN-00A (MP1593)
4.75V to 28V Input, Up to 3A Output Step-Down DC/DC Converter
EVALUATION BOARD - INITIAL RELEASE
8788Monolithic Power Systems
GENERAL DESCRIPTION
where is my waterThe EV1593DN-00A is the Evaluation Board for
MPS’ MP1593 Step-Down DC/DC Converter. It features a wide supply range of 4.75V to 28V and a continuous output current up to 3A. The output voltage is t to 3.3V, but can be easily adjusted to other levels from 1.22V. A 385KHz high switching frequency allows the u of small, low cost capacitors and inductors. Current mode control and an integrated power MOSFET minimize component count, board area, and solution cost. Fault condition protection includes cycle-by-cycle current limiting, thermal shutdown, and under-voltage lockout. Internal soft-start reduces the turn-on stress. The small but thermally enhanced 8-pin SOIC package minimizes board area and provides excellent thermal management.
ELECTRICAL SPECIFICATION
Parameter Symbol Value Units Supply Voltage V IN 4.75 – 28V
Output Voltage V OUT 3.3 V Output Current
I OUT 0 – 3
A
FEATURES
• Up to 3A Output Current
• Wide 4.75 to 28V Operating Input Range • Monolithic Buck with 100m Ω Internal FET • Fixed 385KHz Frequency
• All Ceramic Input and Output Capacitors • Programmable Soft-Start
• Programmable Input Under-Voltage Lockout
APPLICATIONS
• Distributed Power Systems • Battery Charger
• Pre-Regulator for Linear Regulators
, “MPS”, “Monolithic Power Systems”, and “The Future of Analog IC
Technology” are Registered Trademarks of Monolithic Power Systems, Inc.
EV1593DN-00A EVALUATION BOARD
(2.1”X x 1.3”Y x 0.4”Z)
江西教育网中考成绩查询Board Number
MPS IC Number
EV1593DN-00A MP1593
E F F I C I E N C Y (%)
1009590
8580757065605550LOAD CURRENT (mA)
EV1593_TAC _EC01
Efficiency vs
Load Current
500100015002000250030003500
EV1593DN-00A – 4.75V-28V INPUT, UP TO 3A OUTPUT STEP-DOWN CONVERTER
天道培训EVALUATION BOARD - INITIAL RELEASE
EVALUATION BOARD SCHEMATIC
EV1593_S01
SW
GND
GND
VIN EN SS
我是李小龙VOUT
EV1593DN-00A BILL OF MATERIALS
slashdot
Qty Ref Description
Package Manufacturer Part Number 1 C1 Ceramic Capacitor, 22nF, 50V, X7R 0805 Any
2 C2, C8 Ceramic Capacitor, 10µF, 50V, Y5V 1210 Murata GRM32DF51H106ZA01L 1 C
3 Ceramic Capacitor, 8.2nF, 50V, X7R 0603 Any 0 C4, C7 Open
2 C5, C9 Ceramic Capacitor, 22µF, 16V, X5R 1210 Taiyo Yuden EMK3Z5BJ226MM 1 C6 Ceramic Capacitor, 0.1µF, 50V, X7R 0805 Any 1 L1 Inductor, 10µH, 4A Sumida CDRH8D43-100NC 0 D1 Schottky Diode, 40V, 3A SMA Diodes Inc. B340A 1 U1 28V, 3A, Step Down Converter SOIC8 MPS MP1593DN 1 R1 Resistor, 16.9k Ω, 1% 060
3 Any 1 R2 Resistor, 5.6k Ω, 5% 0603 Any 1 R3 Resistor, 10k Ω, 1% 0603 Any 0 R
4 Open 0 R
5 Open
EV1593DN-00A – 4.75V-28V INPUT, UP TO 3A OUTPUT STEP-DOWN CONVERTER
EVALUATION BOARD - INITIAL RELEASE
TYPICAL PERFORMANCE CHARACTERISTICS
electronic是什么意思
7年级上册英语
1009590
8580757065605550E F F I C I E N C Y (%)
500100015002000250030003500
LOAD CURRENT (mA)
EV1593_TPC05
Efficiency vs Load Current
LOAD CURRENT (mA)
EV1593_TPC06
Efficiency vs Load Current
500100015002000250030003500
V OUT 1V/Div.
I L
圣诞节的英语1A/Div.
I L
1A/Div.
V OUT
10mV/Div.V SW 10V/Div.
V IN
100mV/Div.EV1593-WF03
Soft-Start
Waveforms V OUT 1V/Div.
I L
1A/Div.
4ms/Div.
V IN = 12V, V OUT = 3.3V, 1A - 2A STEP
EV1593-WF01
Load Transient Waveforms
EV1593-WF04
Switching Waveforms
EV1593-WF02
Turn Off Waveforms
EV1593DN-00A – 4.75V-28V INPUT, UP TO 3A OUTPUT STEP-DOWN CONVERTER环球教育在线
EVALUATION BOARD - INITIAL RELEASE PRINTED CIRCUIT BOARD LAYOUT
Figure 1—Top Silk Layer Figure 2—Top Layer
Figure 3— Bottom Layer
EV1593DN-00A – 4.75V-28V INPUT, UP TO 3A OUTPUT STEP-DOWN CONVERTER
EVALUATION BOARD - INITIAL RELEASE
NOTICE: MPS believes the information in this document to be accurate and reliable. However, it is subject to change without
notice. Contact MPS for current specifications. MPS encourages urs of its products to ensure that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS cannot assume any legal responsibility for any said applications.
EV1593DN-00A (MP1593) Rev. 1.0 Monolithic Power Systems, Inc. 5
QUICK START GUIDE
1. Connect the positive terminal of the load to VOUT pins, and the negative terminal of the load to
GND pins 2. Pret the power supply output to 4.75V – 28V and turn off the power supply.
3. Connect the positive terminal of the power supply output to the VIN pin and the negative
terminal of the power supply output to the GND pin 4. Turn the power supply on. The MP1593 will automatically startup.
5. To u the Enable function, apply a digital input to EN pin. Drive EN higher than 2.5V to turn on
the regulator, drive EN less than 0.7V to turn it off. 6. An input under voltage lockout (UVLO) function can be implemented by the addition of a resistor
divider R4 and R5.
The EN threshold is 2.5V, so V IN UVLO threshold is V 5.25R 4R 1×⎟⎠
⎞
⎜⎝⎛+.
RECOMMENDED COMPONENTS FOR STANDARD OUTPUT VOLTAGES
The output voltage of this board is t to 3.3V.
This board is laid out to accommodate most commonly ud inductors and output capacitors and to be programmed for most standard output voltages. The following table lists recommended components for some standard output voltages.
Listed compensation components (R2, C3) values are bad on the output capacitor installed on this board. For other capacitors, refer to the Application Information ction in the MP1593 datasheet.
Table 1—Recommended Components for Standard Output Voltages
VOUT R1 R2 C3 L1 1.8V 4.75k Ω 3k Ω 4.7nF 4.7µH 2.5V 10.5k Ω 3.9k Ω 5.6nF 4.7-6.8µH 3.3V 16.9k Ω 5.6k Ω 8.2nF 6.8-10µH 5V 30.9k Ω 7.5k Ω 10nF 10-15µH 12V 88.7k Ω 10k Ω 3.3nF 15-22µH
