EV2005DD-01B 500mA Low-Current LDO Linear Regulator EV Board The Future of Analog IC Technology DESCRIPTION FEATURES The EV2005DD-01B evaluation board demonstrates the performance of MP2005, a monolithic low-current, low-dropout LDO linear regulator. It operates from a 2.5V to 5V input bias voltage and regulates the output voltage from as low as 0.5V. The EVB can supply up to 500mA of load current with a typical dropout voltage of 75mV. It requires a bias supply (2.5V to 5.5V) separate from VIN to run the internal reference and LDO drive circuitry. The output current comes directly from the input voltage supply for high efficiency regulation. The 0.5V internal reference voltage allows the output to be programmed to a range of 0.5V to 5V. The EV2005DD-01B provides thermal overload and current limit protection, stability with ultra low ESR ceramic capacitors, and fast transient response. The MP2005 is available in a 8-pin QFN (2mm x 3mm) package and is also available in fixed output voltage versions. ELECTRICAL SPECIFICATIONS Parameter Input Voltage Blas Voltage Output Current Output Voltage Symbol VIN VB IOUT VOUT Value 1.0 – 5 5 0.5 1.8 Units V V A V Wide 1.0V to 5V Input Voltage Range Stable with Very Small Ceramic Capacitors 75mV Dropout at 500mA Output 2% Accurate Output Voltage Adjustable Output Range from 0.5V to 5V Low Noise: 80µVRMS (10Hz to 100kHz) High PSRR: 40dB at 1MHz Stable With Low-ESR Output Capacitors Low 100μA Ground Current Internal Thermal Protection Current Limit Protection Fully Assembled and Tested APPLICATIONS Low Current Regulators Low Power Handheld Devices Battery Powered Systems Cellular Phones Portable Electronic Equipment Post Regulation for Switching Power Supplies Power Supplies All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. EV2005DD-01B EVALUATION BOARD 120 L x W x H) 2.9” x 2.9” x 0.5” (7.5cm x 7.5cm x 1.2cm) Board Number EV2005DD-01B EV2005DD-01B Rev. 1.1 10/18/2016 MPS IC Number MP2005 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. 1 EV2005DD-01B – LOW VOLTAGE, 500mA LINEAR REGULATOR EV BOARD EVALUATION BOARD SCHEMATIC 2V-5V 1 VIN VIN VOUT 1.8V/0.5A 8 VOUT MP2005 BIAS 3.5V-5.5V 2 5 EN C3 1nF 50V BIAS EN GND FB GND JP2 7 4 GND JP1 EV2005DD-01B BILL OF MATERIALS Qty Ref Value 1 C1 10µF 1 C4 2.2µF 1 C2 4.7µF 1 C3 1nF 1 1 1 1 1 R1 R2 JP JP U1 26.1kΩ 10kΩ EV2005DD-01B Rev. 1.1 10/18/2016 Description Package Ceramic Cap., 1206 X7R, 10V Ceramic Cap., 0805 X7R, 16V Ceramic Cap., 1206 X7R, 16V Ceramic Cap 0603 X7R, 50V Film Res., 1% 603 Film Res., 1% 603 10-Pin Header, 0.1" 5-Pin Header, 0.1" Linear Regulator QFN-8 Manufacturer Manufacturer P/N TDK C3216X7R1C106K TDK C2012X7R1C225K TDK C3216X7R1C475K muRata Panasonic Panasonic Sullins Sullins MPS GRM188R71H102KA01D ERJ-3EKF2612V ERJ-3EKF1002V PTC08SAAN PTC08SAAN MP2005DD www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. 2 EV2005DD-01B – LOW VOLTAGE, 500mA LINEAR REGULATOR EV BOARD PRINTED CIRCUIT BOARD LAYOUT Figure 1—Top Silk Layer Figure 2—Top Layer Figure 3—Bottom Layer EV2005DD-01B Rev. 1.1 10/18/2016 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. 3 EV2005DD-01B – LOW VOLTAGE, 500mA LINEAR REGULATOR EV BOARD QUICK START GUIDE The output voltage of this board is set to 1.8V. The EN pin is connected to BIAS with a jumper for automatic startup. You can connect EN to GND to disable the MP2005 1. Attach the positive and negative ends of the load to the VOUT and GND pins, respectively. 2. Attach the input voltage (2V ≤ VIN ≤ 5V) and input ground to the VIN and GND pins, respectively. 3. Attach the BIAS voltage (3.5V ≤ VBIAS ≤ 5.5V) and BIAS ground to the BIAS and GND pins, respectively. 4. The VIN voltage and BIAS voltage can be set up to same voltage but it has to meet : VIN=VBIAS>(1.8V + VOUT )and VBIAS>2.7V 5. The default resistor values on the board are R1=26.1kΩ and R2=10kΩ. Changing these resistor values will change the output voltage. Use the following equation to determine resistor values for different output voltages: VOUT 0.5Vx(1 R1 ) R2 NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. EV2005DD-01B Rev. 1.1 10/18/2016 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2016 MPS. All Rights Reserved. 4