IFX30081SJV 50mA, Adjustable Linear Voltage Regulator with Ultra Low Quiescent Current Demoboard User’s Guide Rev. 1.0, 2015-02-05 Standard Power IFX30081SJV Demoboard Product Manual Introduction 1 Introduction The IFX30081SJV demoboard can be used to easily evaluate the device in the PG-DSO-8 package. The IFX30081SJV is 50mA linear voltage regulator with ultra low quiescent current. The IFX30081SJV demoboard is fully equipped with external components as well as the device. This demoboard user’s guide contains all necessary information for using of the this board to evaluate the IFX30081SJV. Table 1 Device Overview Type Output voltage Output current Enable Reset Package IFX30081SJV Adjustable (Demoboard configured to 5V output voltage) 50 mA Yes PG-DSO-8 Device OPN : IFX30081SJVXUMA1 Demoboard Name : DEMOBD IFX30081SJV SP No. : SP00122728 No Ordering Information The IFX30081SJV is not qualified and manufactured according to the requirements of Infineon Technologies with regards to automotive and/or transportation applications. For automotive applications and for linear voltage regulators with the Reset feature please refer to the Infineon TLx (TLE, TLF, TLS...) voltage regulator products. 1.1 General Description The IFX30081SJV is a linear voltage regulator with wide input voltage range, low drop out voltage and ultra low quiescent current. With an input voltage range of 2.75 V to 42 V and an ultra low quiescent of only 5 µA, the regulator is perfectly suitable for applications that are battery driven. The IFX30081SJV is an adjustable output voltage low dropout linear voltage regulator with an accuracy of 2 % and maximum output current up to 50mA. The regulation concept implemented in IFX30081SJV combines fast regulation and very good stability while requiring only a small ceramic capacitor of 1 μF at the output. The tracking region starts already at input voltages of 2.75 V (extended operating range). Internal protection features like output current limitation and overtemperature shutdown are implemented to protect the device against immediate damage due to failures like output short circuit to GND, over-current and over-temperature. For more detailed information please refer to the datasheet of the device on the Infineon website. Demoboard User’s Guide 2 Rev. 1.0, 2015-02-05 IFX30081SJV Demoboard Product Manual Introduction 1.2 • • • • • • • • • • IFX30081SJV Feature List Ultra Low Quiescent Current of 5 µA Wide Input Voltage Range of 2.75 V to 42 V Output Current Capacity up to 50 mA Shutdown Current Less than 1 µA Low Drop Out Voltage Output Current Limit Protection Overtemperature Shutdown Enable Wide Temperature Range Green Product (RoHS compliant) 1.3 Block Diagram Figure 1 shows the blockdiagram of the IFX30081SJV. Supply IN OUT Regulated Output Voltage IOUT Current Limitation R1 ADJ CIN VIN Bandgap Reference Temperature Shutdown COUT C ESR VOUT LOAD R2 GND Figure 1 Block Diagram of IFX30081SJV Demoboard User’s Guide 3 Rev. 1.0, 2015-02-05 IFX30081SJV Demoboard Product Manual Demoboard 2 Demoboard Figure 2 shows a IFX30081SJV Demoboard (PG-DSO-8) equipped with the device. Figure 2 IFX30081SJV Demo Board (PG-DSO-8) Demoboard User’s Guide 4 Rev. 1.0, 2015-02-05 IFX30081SJV Demoboard Product Manual Demoboard 2.1 Operating Conditions To avoid any electrical damage of the Demoboard, the maximum operating range defined in Table 2 must be followed. Table 2 Operating Range1) Parameter Symbol Limit Values Min. 2) Unit Note 45 V Power supply Max. 0 Regulator Output VIN VOUT 0 45 V Regulated output voltage Enable Signal EN 0 453) V Enable signal to switch on the regulator Adjust Pin ADJ 0 7 V Connect the voltage divider for setting the output voltage Ground GND 0 0 V System GND Board Supply 1) The Demo Board operates at ambient temperature of 25°C 2) Functional input voltage range starts from 2.75 V to 42 V 3) Absolute maximum rating 2.2 Board Configuration The IFX30081SJV Demoboard can be easily configured via jumpers on the board. The board provides the following configuration options: • • • • • • • Bypassing the reverse protection diode D2 via solder option SJ1 Connecting enable signal with the supply voltage VIN (JP_EN_VIN) Selection of the enable pin (JP_EN) Placeholder for additional input capacitor (C2) Placeholder for additional output capacitor (C5) Placeholder for external voltage divider for the adjustable output voltage variants (R1, R2) Placeholder for DSO-8 socket (S1) and corresponding input and output capacitors (C7, C8) 2.2.1 Enable Function The jumper JP_EN_VIN can be used to connect the EN signal to the supply voltage VIN. Table 3 Jumper JP_EN_VIN setting for enable function JP_EN_VIN Enable Function set EN is connected to the supply voltage VIN; the regulator is enabled while it is supplied open EN is supplied from external via connector EN (Banana jack)1) 1) Without suppling a signal to EN, the regulator is disabled because of an internal pull down resistor. The jumper JP_EN can be used to configure the enable pin occupancy. Table 4 Jumper JP_EN setting for enable function JP_EN Enable Function set to 1 - 2 EN signal is routed to pin 3 (default setting for IFX30081SJV). set to 2 - 3 EN signal is routed to pin 2 (for usage of compatible devices). Demoboard User’s Guide 5 Rev. 1.0, 2015-02-05 IFX30081SJV Demoboard Product Manual Demoboard 2.2.2 Signal Adaption For easy signal adaption e.g. connecting probes for an oscilloscope, connectors CON1, CON2 and CON_GND can be used. Table 5 Signals on connector Connector Accessible Signals CON1 - VIN (input voltage) - EN (enable input signal) - GND (ground) CON2 - VOUT (output voltage) - ADJ (adjust signal) CON_GND - GND 2.2.3 Output Voltage Adjust The output voltage of the regulators with adjutable output voltage can be adjusted between 1.2 V and VIN - Vdr by an external resistor divider, connected to the adjust pin ADJ. The output voltage can be easily calculated, neglecting the current flowing into the ADJ pin: R1 + R2 V OUT = ------------------- × V ref R2 (2.1) with • • • Vref: internal reference voltage, typically 1.2V R1: resistor between regulator output OUT and adjust pin ADJ R2: resistor between adjust pin ADJ and GND In oder to neglect the current flowing into the ADJ pin, the values of R1 and R2 should be selected fulfilling the criteria R2 ≤ 250 kΩ. To set the output voltage to 1.2 V, the adjust pin ADJ should be directly connected to the output pin Q. The Demoboard is equipped with a resistor divider. R1 and R2 are mounted by default with the following values: • • R1 = 470 kΩ R2 = 150 kΩ The nominal output voltage with the default resistor devider setting on the Demoboard is typ. 4.96 V. Demoboard User’s Guide 6 Rev. 1.0, 2015-02-05 IFX30081SJV Demoboard Product Manual Schematic and Layout 3 Schematic and Layout 3.1 Schematic Figure 3 Schematic of IFX30081SJV Demoboard (PG-DSO-8) Demoboard User’s Guide 7 Rev. 1.0, 2015-02-05 IFX30081SJV Demoboard Product Manual Schematic and Layout Layout Figure 4 Top Layer of IFX30081SJV Demoboard (PG-DSO-8) Demoboard User’s Guide 1 2 2 3 3 4 4 1 2 3 1 3.2 8 Rev. 1.0, 2015-02-05 IFX30081SJV Demoboard Product Manual Figure 5 1 2 2 3 3 4 4 1 2 3 1 Schematic and Layout Bottom Layer of IFX30081SJV Demoboard (PG-DSO-8) Demoboard User’s Guide 9 Rev. 1.0, 2015-02-05 IFX30081SJV Demoboard Product Manual Figure 6 1 2 2 3 3 4 4 1 2 3 1 Schematic and Layout Top Layer components of IFX30081SJV Demoboard (PG-DSO-8) Demoboard User’s Guide 10 Rev. 1.0, 2015-02-05 IFX30081SJV Demoboard Product Manual Bill of Material 4 Bill of Material Table 6 Bill of Material Part Value Package VIN Banana jack BABU4MM VOUT Banana jack BABU4MM EN Banana jack BABU4MM N.C. Banana jack BABU4MM ADJ Banana jack BABU4MM N.C. Banana jack BABU4MM GND Banana jack BABU4MM R1 n.a. / 470k R0805 R2 n.a. / 150k R0805 R3 n.a. (10k) R0805 R4 n.a. R0805 R5 n.a. R0805 C1 100n/50V C0805 C2 n.a. (4u7/50V) C1206 C3 100u/50V E5-8,5 C4 1u/16V C0805 C5 n.a. (10u/16V) C1206 C6 100n/16V C0805 C7 n.a. C0805 C8 n.a. C0805 CON1 4 pin connector CON2 4 pin connector CON_GND 2 pin connector JP_EN_VIN jumper JP_EN jumper SJ1 solder jumper D1 SM4004 diode IC1 IFX30081SJV PG-DSO-8 S1 OTS-8(16)-1.27-01 OTS-16-1.27-03 Demoboard User’s Guide 11 Rev. 1.0, 2015-02-05 IFX30081SJV Demoboard Product Manual General Information 5 General Information 5.1 Restrictions This Demoboard is offering limited features allowing you only to evaluate and test the Infineon products. The Demoboard is not an end product (or finished appliance), nor is it intended or authorized by Infineon to be integrated into end products. You are not authorized to use the Demoboard in any production system. 5.2 • Additional Information For further information you may refer to http://www.infineon.com/ 5.3 Revision History Revision Date Changes 1.0 2015-02-05 Initial version Demoboard User’s Guide 12 Rev. 1.0, 2015-02-05 Edition 2015-02-05 Published by Infineon Technologies AG 81726 Munich, Germany © 2015 Infineon Technologies AG All Rights Reserved. LEGAL DISCLAIMER THE INFORMATION GIVEN IN THIS APPLICATION NOTE IS GIVEN AS A HINT FOR THE IMPLEMENTATION OF THE INFINEON TECHNOLOGIES COMPONENT ONLY AND SHALL NOT BE REGARDED AS ANY DESCRIPTION OR WARRANTY OF A CERTAIN FUNCTIONALITY, CONDITION OR QUALITY OF THE INFINEON TECHNOLOGIES COMPONENT. THE RECIPIENT OF THIS APPLICATION NOTE MUST VERIFY ANY FUNCTION DESCRIBED HEREIN IN THE REAL APPLICATION. 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