P1690 UTC | Alldatasheet
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UNISONIC TECHNOLOGIES CO., LTD P1690 LINEAR INTEGRATED CIRCUIT www.unisonic.com.tw 1 of 5 Copyright © 2017 Unisonic Technologies Co., Ltd QW-R103-081.D 0.4A, 150KHZ 65V BUCK DC TO DC CONVERTER DESCRIPTION The UTC P1690 is a PWM buck (step-down) DC/DC converter, fixed frequency of 150K Hz, capable of driving a 0.4A load with high efficiency, low ripple and excellent line and load regulation. The P1690 built kinds of protect circuit inside. Such as OTP SCP and so on. FEATURES * Wide 5V~ 65V Operation Voltage * Output Adjustable from 1.25V~25V * High efficiency up to 85% * Maximum Duty Cycle 100% * Fixed 150KHz Switching Frequency * Built in OTP * Built in SCP * Built in OCP SOP-8 ORDERING INFORMATION Ordering Number Lead Free Halogen Free Package Packing P1690L-S08-R P1690G-S08-R SOP-8 Tape Reel MARKING
P1690 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 2 of 5 www.unisonic.com.tw Q W - R 1 0 3 - 0 8 1 . D PIN CONFIGURATION PIN DESCRIPTION PIN NO. PIN NAME DESCRIPTION 1 V IN Supply Voltage Input Pin. 2 SW Power Switch Output Pin (SW). 3 FB Feedback voltage Pin (FB). 4 EN Enable Pin. 5,6,7,8 GND Ground Pin. BLOCK DIAGRAM
P1690 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 3 of 5 www.unisonic.com.tw Q W - R 1 0 3 - 0 8 1 . D ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Input Voltage VIN -0.3 ~ 70 V Feedback Pin Voltage V FB -0.3 ~ V IN V EN Pin Voltage VEN -0.3 ~ V IN V Output Switch Pin Voltage V SW -0.3 ~ V IN V Power Dissipation P D Internally limited mW Junction to Ambient, No Heatsink, Free Air șJA 60 °C/W Operating Junction Temperature T J -40 ~ 125 °C Storage Temperature T STG -65 ~ 150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS (TA=25°C unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT System Parameters Test Circuit Figure1 Efficiency Ș V IN=36V,VOUT=15V, IOUT=0.3A 88 % Efficiency Ș V IN=48V, VOUT=15V, IOUT=0.4A 87 % Efficiency Ș V IN=60V, VOUT=15V, IOUT=0.4A 83 % ELECTRICAL CHARACTERISTICS (DC PARAMETERS) (VIN=48V, GND=0V, VIN & GND parallel connect a 33uf/100V capacitor; IOUT=0.2A, TA=25°C the others floating unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Input Operation Voltage V IN 5 65 V Shutdown Supply Current I STBY V EN=2V 85 200 uA Quiescent Supply Current I q V ON/OFF=0V, VFB=VIN 2.5 5 mA Oscillator Frequency Fosc 120 150 180 KHz Switch Current Limit I L V FB=0 0.4 A High (Regulator OFF) 1.6 V EN Pin Threshold V EN Low (Regulator ON) 0.8 V IH V EN=2.5V (OFF) 6 20 uA EN Pin Input Leakage Current IL V EN=0.5V (ON) 1 20 uA Output Saturation Voltage V CE V FB=0V, IOUT=0.4A 0.85 V Max. Duty Cycle D MAX V FB=0V 100 %
P1690 LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 5 of 5 www.unisonic.com.tw Q W - R 1 0 3 - 0 8 1 . D TYPICAL CHARACTERISTICS Efficiency VOUT=15V Efficiency (%) ILOAD (A) 0.25 VIN=24V VIN=48V VIN=36V VIN=60V Efficiency VOUT=5V Efficiency (%) ILOAD (A) 0.25 VIN=8V VIN=12V VIN=24V VIN=36V VIN=48V VIN=60V UTC assumes no responsibility for equipment failures that result from u sing products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition rang es, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or s ystems where malfunction of these products can be reasonably expected to result in personal injury. R eproduction in whole or in part is prohibited without the prior written consent of the copyright owner. T he information presented in this document does not form part of any quotation or contract, is believe d to be accurate and reliable and may be changed without notice.