XRP6658 XRP6658 11AA 11..55MMHHzz PPFFMM//PPWWMM SSyynncchhrroonnoouuss SStteepp--DDoowwnn CCoonnvveerrtteer r January 2020 Rev. 2.0.0 GENERAL DESCRIPTION APPLICATIONS The XRP6658 is a synchronous current mode Portable Equipments PWM step down (buck) converter capable of Battery Operated Equipments delivering up to 1 Amp of current and optimized for portable battery-operated Audio-Video Equipments applications. Networking & Telecom Equipments Based on a current mode 1.5MHz constant frequency PWM control scheme, the XRP6658 FEATURES reduces the overall component count and solution footprint as well as provides a low Guaranteed 1A Output Current output voltage ripple and excellent line and Input Voltage: 2.5V to 5.5V load regulation. It also implements a PFM 1.5MHz PWM Current Mode Control mode to improve light load efficiency as well as a 100% duty cycle LDO mode. Output PFM Mode Operations at Light Load voltage is adjustable to as low as 0.6V with a 100% Duty Cycle LDO Mode Operations better than 3% accuracy while a low quiescent Internal Compensation Network current supports the most stringent battery operating conditions. 30A Quiescent Current Built-in over temperature and under voltage Over Temperature & UVLO Protections lock-out protections insure safe operations RoHS Compliant Green/Halogen Free under abnormal operating conditions. 5-Pin SOT23 Package The XRP6658 is offered in a RoHS compliant, green/halogen free 5-pin SOT23 package. TYPICAL APPLICATION DIAGRAM Fig. 1: XRP6658 Application Diagram 1/12 Rev. 2.0.0 XRP6658 XRP6658 11AA 11..55MMHHzz PPFFMM//PPWWMM SSyynncchhrroonnoouuss SStteepp--DDoowwnn CCoonnvveerrtteerr ABSOLUTE MAXIMUM RATINGS OPERATING RATINGS These are stress ratings only and functional operation of Input Voltage Range VIN ............................... 2.5V to 5.5V the device at these ratings or any other above those ................ -40C to 85C Ambient Temperature Range TA indicated in the operation sections of the specifications Junction Temperature Range T ................. -40C to 125C J below is not implied. Exposure to absolute maximum Thermal Resistance ...................................................... rating conditions for extended periods of time may affect JA (5 Pin SOT23) ....................................... 134.5C/W reliability. (5 Pin SOT23) ........................................... 81C/W JC Input Voltage V ...................................... -0.3V to 6.0V IN EN, VFB Voltages .......................................... -0.3V to VIN SW Voltage .................................... -0.3V to (VIN + 0.3V) Storage Temperature .............................. -65C to 150C Lead Temperature (Soldering, 10 sec) ................... 260C ESD Rating (HBM - Human Body Model) .................... 2kV ESD Rating (CDM Charged Device Model) .............. 500V Junction Temperature (Notes 1, 3) ....................... 150C ELECTRICAL SPECIFICATIONS Specifications are for an Ambient Temperature of TA = 25C only limits applying over the full Operating Temperature range are denoted by a . Minimum and Maximum limits are guaranteed through test, design, or statistical correlation. Typical values represent the most likely parametric norm at T = 25C, and are provided for reference purposes only. Unless A otherwise indicated, V = 3.6V, T = 25C. IN A Parameter Min. Typ. Max. Units Conditions Input Voltage Range 2.5 5.5 V Feedback Current +100 nA Regulated Feedback Voltage 0.588 0.600 0.612 V Output Voltage Accuracy 3 % I = 100mA, V < 3.0V -3 OUT IN 3 % Output Voltage Accuracy -3 IOUT = 100mA, VIN = 3.0V to 5.5V Reference Voltage Line Regulation 0.4 %/V VIN = 2.5V to 3.0V Reference Voltage Line Regulation 0.4 %/V V = 3.0V to 5.5V IN Output Voltage Line Regulation 0.4 %/V V = 2.5V to 3.0V IN Output Voltage Line Regulation 0.4 %/V V = 3.0V to 5.5V IN Peak Inductor Current 1.5 2.3 A VFB = 0.5V or VOUT = 90% PFM Quiescent Current 30 A VFB = 0.65V or VOUT = 108% Shutdown 0.1 1 A V = 0V, V = 4.2V RUN IN Oscillator Frequency 1.5 1.8 MHz V = 0.6V or V = 100% 1.2 FB OUT f /2 kHz Short-Circuit Oscillator Frequency OSC VFB = 0V or VOUT = 0V RDS(ON) of PMOS 0.22 ISW = 100mA RDS(ON) of NMOS 0.17 ISW = 100mA Under Voltage Lock Out 2 V SW Leakage +1 A V = 0V, V = 0V or 5V, V = 5V RUN SW IN Enable Threshold 1.2 V Shutdown Threshold 0.4 V EN Leakage Current +1 A Note 1: T is a function of the ambient temperature T and power dissipation P : (T = T + (P * )) J A D J A D JA Note 2: Dynamic quiescent current is higher due to the gate charge being delivered at the switching frequency. Note 3: This IC is built-in over-temperature protection to avoid damage from overload conditions. Note 4: is measured in the natural convection at T =25 on a high effective thermal conductivity test board (2 layers, JA A 2S0P) of JEDEC 51-5 thermal measurement standard. Note 5: JC represents the resistance to the heat flows the chip to package top case. 2/12 Rev. 2.0.0