R1MX55

UNISONIC TECHNOLOGIES CO., LTD R1MX55 VOLTAGE REGULATOR DESCRIPTION As the UTC linear intergrated LDO, the R1MX55 shows a high current, high accuracy, low-dropout voltage. The feature are: low dropout voltage, very low ground current. Cause the series have been designed for high current loads, so they are also used in lower current, extremely low dropout-critical systems (in which their tiny dropout voltage and ground current values are important attributes). LINEAR INTEGRATED CIRCUIT FEATURES * Built-in ON/OFF function, * Over current protection function, * Over heat protection function * Adjustable DC output voltage * 30mA / 2.44V Output low dropout voltage regulator Lead-free: R1MX55L Halogen-free: R1MX55G ORDERING INFORMATION Normal R1MX55-AB5-R Ordering Number Lead Free R1MX55L-AB5-R Halogen Free R1MX55G-AB5-R Package SOT-89-5 Packing Tape Reel R1MX55L-AB5-R (1)Packing Type (2)Package Type (3)Lead Plating (1) R: Tape Reel (2) AB5: SOT-89-5 (3) G: Halogen Free, L: Lead Free, Blank: Pb/Sn www.unisonic.com.tw Copyright © 2008 Unisonic Technologies Co., Ltd 1 of 8 QW-R101-023.B R1MX55 PIN DESCRIPTIONS PIN NO. PIN NAME 1 VADJ 2 GND 3 VC 4 VIN 5 VOUT FUNCTION Output voltage adjustment Ground ON/OFF control DC input DC output LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 8 QW-R101-023.B R1MX55 BLOCK DIAGRAM Block For Fixed Version VIN VC 4 3 ON/OFF VREF OTP OCP LINEAR INTEGRATED CIRCUIT 5 VOUT VADJ 1 2 GND Block For Adjustable Version VIN VC 4 3 ON/OFF VREF VADJ 1 2 GND OTP OCP 5 VOUT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 8 QW-R101-023.B R1MX55 ABSOLUTE MAXIMUM RATINGS LINEAR INTEGRATED CIRCUIT PARAMETER SYMBOL RATINGS UNITS Input Voltage (Note 2) VIN 9 V ON/OFF Control Voltage (Note 2) VC 9 V Output Adiustment pin Voltage (Note 2) VADJ 5 V Output Current IOUT 500 mA Power Dissipation PD 900 mW Junction Temperature TJ 150 °C Operating Temperature TOPR -40 ~ +85 °C Storage Temperature TSTG -55 ~ +150 °C Note: 1. 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. 2. All are open except GND and applicable terminals. ELECTRICAL CHARACTERISTICS (VIN=3.5V, VOUT=2.44V (R1=R2=100KΩ), IOUT=30mA, VC=1.8V, TA=25°C, unless otherwise specified) PARAMETER SYMBOL CONDITIONS MIN TYP Input Voltage VIN 2.6 Output Voltage VOUT 1.3 Load Regulation ΔVOUT IOUT=5~500mA 10 Line Regulation ΔVOUT VIN=3.5~8.5V 6 Ripple Rejection RR 55 Dropout Voltage VD IOUT=500mA Reference Voltage VREF 1.196 1.22 Temperature Coefficient of Output TCVOUT TJ=25 ~ 75°C, IOUT=10mA ±0.1 Voltage Output Noise Voltage VNO(RMS) 10HZ < f < 100kHZ 100 On-State Voltage for Control VC(ON) (Note) 1.8 On-State Current for Control IC(ON) VC=1.8V 20 Off-State Voltage for Control VC(OFF) Quiescent Current IQ IOUT=0A 0.8 Output Off-State Consumption Current IQS VC=0.2V Note: In case that the control terminal (3th pin) is non-connection, output voltage should be OFF state. MAX UNITS 9.0 V 5.0 V 100 mV 20 mV dB 0.7 V 1.244 V mV/°C μV V μA V mA μA 70 0.4 1.2 1 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 8 QW-R101-023.B R1MX55 TYPICAL APPLICATION CIRCUIT 1 4 3 5 LINEAR INTEGRATED CIRCUIT VOUT DC Input R1MX55 R2 3 VIN CI 1μF ON-OFF single High:Output ON Low or Open:Output OFF 1 5 2 R1 CO 1μF Load UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 8 QW-R101-023.B R1MX55 LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS MEASURING CIRCUIT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 8 QW-R101-023.B R1MX55 TYPICAL CHARACTERISTICS LINEAR INTEGRATED CIRCUIT Quiescent Current vs. Junction Temperature (Typical Values) 730 720 710 700 690 680 670 660 0.5 650 640 -25 -15 5 25 45 VIN=4.3V, VC=1.8V, IOUT=0A, CI=CO=1u (ceramic capacitor) ESR VS. Output Current 100 CO=1µF VIN=5V, VC=1.8V, CI=1µF, VOUT=2.44V, Ta=25℃ 10 Vibrating Stable Zone 1 65 85 105 125 0.1 1 10 20 50 200 500 Junction Temperature, TJ(°C) Output Current, IOUT(mA) 7 of 8 QW-R101-023.B UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw R1MX55 TYPICAL CHARACTERISTICS(Cont.) Load Transient Response 100 50 0 -50 -100 LINEAR INTEGRATED CIRCUIT Line Transient Response 200 100 0 -100 -200 Ta=25℃, VIN=5V, VC=1.8V, IOL=50mA, CI=CO=1u (ceramic capacitor) Ta=25℃, VC=1.8V, CI=CO=1u (ceramic capacitor) 500 1 50 0 100 200 300 400 500 600 700 800 900 1000 0 0 100 200 300 400 500 600 700 800 900 1000 Time(µs) Time(µs) U TC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, 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 systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 8 of 8 QW-R101-023.B