UNISONIC TECHNOLOGIES CO., LTD LP2950/295 00 ma LOW-DROPOUT VOLTAGE REGULATOR TO-92 TO-252 DESCRIPTION The UTC LP2950/295 are monolithic integrated voltage regulators with low dropout voltage, and low quiescent current. It includes many features that suitable for different applications. FEATURES SOP-8 DIP-8 * Fixed output versions, 2.5V, 3.0V, 3.3V, 3.6V and 5.0V, are available. * High accuracy output voltage. * Extremely low quiescent current and dropout voltage. * Extremely tight load and line regulation. * Current and thermal limiting. * Very low temperature coefficient. * Logic controlled shutdown and err flog available for 8 pin package. * Output voltage programmable for LP295. DFN3030-8 ORDERING INFORMATION Ordering Number Lead Free Halogen Free Package Packing LP2950L-xx-D08-T LP2950G-xx-D08-T DIP-8 Tube LP2950L-xx-S08-R LP2950G-xx-S08-R SOP-8 Tape Reel LP2950L-xx-T92-B LP2950G-xx-T92-B TO-92 Tape Box LP2950L-xx-T92-K LP2950G-xx-T92-K TO-92 Bulk LP2950L-xx-TN3-R LP2950G-xx-TN3-R TO-252 Tape Reel LP2950L-xx-K08-3030-R LP2950G-xx-K08-3030-R DFN3030-8 Tape Reel LP295L-D08-T LP295G-D08-T DIP-8 Tube LP295LS08-R LP295G-S08-R SOP-8 Tape Reel LP295L-K08-3030-R LP295G-K08-3030-R DFN3030-8 Tape Reel Note: Pin Assignment: I: V IN O: V OUT G: GND of 9 Copyright 207 Unisonic Technologies Co., Ltd
MARKING INFORMATION PACKAGE VOLTAGE CODE MARKING DIP-8 SOP-8 TO-92 25: 2.5V 30: 3.0V 33: 3.3V 36: 3.6V 50: 5.0V TO-252 DFN3030-8 UNISONIC TECHNOLOGIES CO., LTD 2 of 9
UNISONIC TECHNOLOGIES CO., LTD PIN CONFIGURATIONS UTC LP2950 2 3 UTC LP2950 OUTPUT INPUT GND TO-92 Plastic Package Bottom View INPUT GND OUTPUT SOT-252 Package OUTPUT 8 INPUT OUTPUT 8 INPUT SENSE SHUTDOWN 2 3 UTC LP295 7 6 FEEDBACK 5V TAP NC SHUTDOWN 2 3 UTC LP2950 7 6 NC NC GND 4 5 ERROR GND 4 5 ERROR SOP-8 OR DIP-8 PACKAGE FOR UTC LP295 SOP-8 OR DIP-8 PACKAGE FOR UTC LP2950 3 of 9 Copyright 207 Unisonic Technologies Co., Ltd
BLOCK DIAGRAM FOR LP2950 FOR LP295 UNISONIC TECHNOLOGIES CO., LTD 4 of 9
ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Supply Voltage V CC -0.3 ~ +30 V Feedback Voltage V FB -.5 ~ +30 V Shutdown Voltage V SHDN -0.3 ~ +30 V Power Dissipation P D Internally Limited W Operation Junction Temperature T J -40 ~ +25 C Storage Temperature T STG -65 ~ +50 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. THERMAL DATA PARAMETER SYMBOL RATING UNIT TO-92 60 TO-252 92 Junction-to-Ambient SOP-8 θ JA 90 C/W DIP-8 05 DFN3030-8 30 TO-92 83 Junction-to-Case TO-252 6 θ JC SOP-8/DIP-8 45 C/W DFN3030-8 35 ELECTRICAL CHARACTERISTICS (T J =25 C, V IN =6V, I L =00 A, C L =μf, unless otherwise specified.) For All Version: PARAMETER SYMBOL TEST CONDITION MIN TYP MAX UNIT Output Voltage V OUT T J =25 C (Note ) V OUT 0.98 V OUT V OUT.02 V Output Voltage V OUT 00 A I L 00mA, T J T J (max) V OUT 0.98 V OUT V OUT.02 V Output Voltage Temperature Coefficient TcVo 20 00 ppm/ C Line Regulation V OUT 6V V IN 30V 0.03 0. 0.2 % Load Regulation V OUT 00μA I L 00 ma 0.04 0. 0.2 % Dropout Voltage V D I L =00μA 50 80 50 I L =00mA (Note 2) 380 450 600 mv Ground Current I G I L =00μA 75 20 40 μa I L =00mA 8 2 4 ma Dropout Ground Current V IN =4.5V,I L =00μA 0 70 200 μa Current Limit I LIMIT V OUT =0 60 25 250 ma Output Noise (0Hz ~ 00KHz) (Bypass=0.0 F pins 7 to (LP295)) en C L =μf 430 C L =200μF 60 C L =3.3μF 00 μv UNISONIC TECHNOLOGIES CO., LTD 5 of 9
ELECTRICAL CHARACTERISTICS(Cont.) For UTC LP2950 8-Pin Version Only PARAMETER SYMBOL TEST CONDITION MIN TYP MAX UNIT Error Comparator Output Leakage Current I O(LEAK) V OH =30V A Output Low Voltage V OL V IN =4.5V, I OL =400 A 250 mv Threshold Voltage Upper V THU (Note 3) 3.2 %VO Lower V THL (Note 3) 7.6 %VO Hysteresis V HYS (Note 3) 5 mv Shutdown Input Input Logic Voltage Low V IL Regulator ON.3 0.70 High V IH Regulator OFF 2.0 V Shutdown Pin Input Current I SHDN V SHDN =2.4V 30 50 μa V SHDN =30V 450 600 μa Regulator Output Current V SHDN 2V, V IN 30V, V OUT =0 I DFF Shutdown Feedback pin tied to 5V Tap. 3 0 μa For UTC LP295 8-Pin Version Only PARAMETER SYMBOL TEST CONDITION MIN TYP MAX UNIT Reference Voltage V REF.22.235.25 V Reference Voltage V REF Over temperature(note 4).9.27 V Feedback pin Bias Current I FB 20 40 na Reference Voltage Temperature Coefficient V REF(TC) 50 ppm/ C Feedback Bias Current Temperature Coefficient I FB(TC) 0. na/ C Error Comparator Output Leakage Current I O(LEAK) V OH =30V A Output Low Voltage V OL V IN =4.5V, I OL =400 A 250 mv Threshold Voltage Upper V THU (Note 3) 3.2 %VO Lower V THL (Note 3) 7.6 %VO Hysteresis V HYS (Note 3) 5 mv Shutdown Input Input Logic Voltage Low V IL Regulator ON.3 0.70 High V IH Regulator OFF 2.0 V Shutdown Pin Input Current I SHDN V SHDN =2.4V 30 50 μa V SHDN =30V 450 600 μa Regulator Output Current Shutdown Note:. V SHDN 0.8V. 2. I DFF V SHDN 2V, V IN 30V, V OUT =0 Feedback pin tied to 5V Tap. 3 0 μa Additional conditions for 8-pin versions are FB pin tied to 5V TAP, Output tied to Sense (V OUT =5V) and Dropout Voltage is defined as the input to output differential at which the output voltage drops 00mV below its nominal value measured at V differential. 3. Comparator thresholds are expressed in terms of percentage value of voltage output. 4. V REF V OUT (V IN -V), 2.3V V IN 30V, 00 A I L 00mA, T J T J(MAX) UNISONIC TECHNOLOGIES CO., LTD 6 of 9
TYPICAL APPLICATION CIRCUIT 0 Ampere Low Dropout Regulator CURRENT LIMIT SECTION +VIN=Vout+0.5V 680 0.05 2N3906 470 UTC D65H0 4.7M 8 +VIN ERROR 5 0k +VOUT 00m A 20k 220 3 UTC LP295 SD 7 FB GND Vout 4 R R2 % 4.7 F 00 F 0.033 F 47 VOUT=.23V*(+R/R2) For 5V output use internal resistors.wire pin 6 to 7 and wire pin 2 to +VOUT Fig. V IN UTC LP2950-2.5 UTC LP2950-3.0 UTC LP2950-3.3 UTC LP2950-3.6 UTC LP2950-5.0 V OUT Fig.2 UNISONIC TECHNOLOGIES CO., LTD 7 of 9
TYPICAL CHARACTERISTICS UNISONIC TECHNOLOGIES CO., LTD 8 of 9
TYPICAL CHARACTERISTICS(Cont.) UTC 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 9 of 9