DATA SHEET BIPOLAR ANALOG INTEGRATED CIRCUIT µ PC2260 LOW DROPOUT VOLTAGE REGULATOR WITH SYSTEM RESET PIN DESCRIPTION The µ PC2260 is a 500 mA maximum output current low dropout voltage regulator with a reset pin that outputs a reset signal when a drop in the output voltage is detected, and a reset signal output timing adjustment pin. The output voltage is 5 V, and the minimum voltage difference between input and output is extremely low, making this product ideal for use in the power supply circuits of systems with built-in battery-driven microprocessors. Because the reverse leakage current of this power supply is about 10 µ A even if a voltage is applied to the output pin when the input voltage is cut off, a reverse protection diode is not necessary even in systems requiring battery backup. FEATURES PIN CONFIGURATION (Marking Side) • Outputs reset signal (active low) when the output voltage drops. • Power on reset constant can be set by attaching a single capacitor. 5-pin plastic V-DIP (V) µ PC2260V • Low minimum voltage difference between input and output 1: INPUT VDIF = 0.5 V TYP. (when IO = 500 mA) • Low reverse current leakage during back up IOLK = 10 µ A MAX. (at VIN = 0 V, VO = 5 V, 0°C ≤ TJ ≤ 125°C) 2: RESET 1 2 3 4 5 3: GND 4: DELAY CAPACITOR 5: OUTPUT ORDERING INFORMATION Part Number Package µ PC2260V 5-pin plastic V-DIP (V) The information in this document is subject to change without notice. Before using this document, please confirm that this is the latest version. Not all devices/types available in every country. Please check with local NEC representative for availability and additional information. Document No. G14901EJ2V0DS00 (2nd edition) Date Published June 2000 NS CP (K) Printed in Japan © 2000 µ PC2260 BLOCK DIAGRAM INPUT Start-up circuit Safe operating area protection Reference voltage circuit Error amplifier Drive circuit OUTPUT Thermal shut down circuit Leakage protection circuit 3 kΩ RESET Reset circuit Over current protection circuit GND DELAY CAPACITOR 2 Data Sheet G14901EJ2V0DS00 µ PC2260 ABSOLUTE MAXIMUM RATINGS (TA = +25 °C, unless otherwise specified.) Parameter Symbol Ratings Unit Input Voltage VIN −0.3 to +35 V Reset Pin Applied Voltage VRST −0.3 to +35 V 20 Note Total Power Dissipation (TC = 25°C) PT W Operating Ambient Temperature TA −20 to +85 °C Operating Junction Temperature TJ −20 to +150 °C Storage Temperature Tstg −55 to +150 °C Thermal Resistance Rth (J-C) 4 °C/W Rth (J-A) 83 °C/W (Junction to Case) Thermal Resistance (Junction to Ambient Air) Note The total loss is limited by an internal circuit. Where TJ > 150°C, an internal protection circuit cuts off the output. Caution Product quality may suffer if the absolute maximum rating is exceeded even momentarily for any parameter. That is the absolute maximum ratings are rated values at which the product is on the verge of suffering physical damage, and therefore the product must be used under conditions that ensure that the absolute maximum ratings are not exceeded. TYPICAL CONNECTION INPUT OUTPUT 1 4 CIN 0.33 µ F DELAY CAPACITOR 5 3 2 GND RESET D CDLY CO 47 µ F Backup capacitor Reset output (active low) CIN : 0.1 µ F to 0.47 µ F. Determine the capacitance depending on the line between the power supply smoothing circuit and input pin. Be sure to connect this capacitor to prevent abnormal oscillation. Use of a capacitor, such as a film capacitor, with excellent voltage and temperature characteristics is recommended. Note that some laminated ceramic capacitors have poor temperature and voltage characteristics. When using a laminated ceramic capacitor, the capacitance must be stable in the voltage and temperature ranges used. CO : Must be 47 µ F or more. Be sure to connect this capacitor to prevent oscillation and to improve transient load stability. Connect CIN and CO as close to the IC (within 1 to 2 cm) as possible. When using this product below 0°C, select an electrolytic capacitor with low impedance characteristics. D : Connect Schottky barrier diode (with a low forward voltage) if the voltage on the OUTPUT pin is lower than that on the GND pin. Data Sheet G14901EJ2V0DS00 3 µ PC2260 RECOMMENDED OPERATING CONDITIONS Parameter Symbol MIN. TYP. MAX. Unit Input Voltage VIN 6 20 V Output Current IO 5 500 mA Operating Junction Temperature TJ −20 +125 °C Caution The recommended operating range may be exceeded without causing any problems provided that the absolute maximum ratings are not exceeded. However, if the device is operated in a way that exceeds the recommended operating conditions, the margin between the actual conditions of use and the absolute maximum ratings is small, and therefore thorough evaluation is necessary. The recommended operating conditions do not imply that the device can be used with all values at their maximum values. ELECTRICAL CHARACTERISTICS (TJ = 25 °C, VIN = 9 V, IO = 350 mA, CIN = 0.33 µ F, CO = 47 µ F, unless otherwise specified.) Parameter Output Voltage Symbol Test Conditions VO 6 V ≤ VIN ≤ 20 V, 5 mA ≤ IO ≤ 500 mA, MIN. TYP. MAX. Unit 4.8 5.0 5.2 V 5.25 V 4.75 0 °C ≤ TJ ≤ 125 °C Line Regulation REGIN 6.5 V ≤ VIN ≤ 20 V 5 50 mV Load Regulation REGL 5 mA ≤ IO ≤ 500 mA 10 50 mV Operating Circuit Current IBIAS IO = 0 A 2 5 mA IO = 500 mA 30 mA 10 mA Operating Circuit Current Change ∆ IBIAS 6.5 V ≤ VIN ≤ 20 V, IO = 500 mA Output Noise Voltage Vn 10 Hz ≤ f ≤ 100 kHz Ripple Rejection R•R f = 120 Hz, 6.5 V ≤ VIN ≤ 16.5 V Dropout Voltage VDIF IO = 500 mA Peak Output Current IO peak Temperature Coefficient of Output ∆ VO/∆ T IO = 5 mA, 0 °C ≤ TJ ≤ 125 °C OFF Output Leakage Current IOLK VIN = 0 V, VO = 5 V, 0 °C ≤ TJ ≤ 125 °C Reset Output Voltage (High Level) VRSTH IRSTH = 100 µ A, 0 °C ≤ TJ ≤ 125 °C Reset Output Voltage (Low Level) VRSTL Reset output is active (low level), 56 0.7 130 µ Vr.m.s. 65 dB 0.5 0.8 V 0.95 1.2 A 0.4 mV/°C Voltage 10 VO − 0.5 µA V 0.6 0.8 V 10 µA VO − 0.1 V IRSTL = 1.6 mA, 0 °C ≤ TJ ≤ 125 °C Reset Output Leakage Current IRLK VO(RST) ≤ VO, 0 °C ≤ TJ ≤ 125 °C Output Voltage to Output Reset VO(RST) 0 °C ≤ TJ ≤ 125 °C td CDLY = 0.1 µ F, 0 °C ≤ TJ ≤ 125 °C VO − 0.2 Signal Reset Output Delay Time 4 Data Sheet G14901EJ2V0DS00 30 ms µ PC2260 RESET OUTPUT RESPONSE CHARACTERISTICS VO VO(RST) OUTPUT 0V VRSTH RESET VRSTL td td Remark td = 30 ms TYP. at CDLY = 0.1 µ F Data Sheet G14901EJ2V0DS00 5 µ PC2260 TYPICAL CHARACTERISTIC (TJ = +25 °C, unless otherwise specified. Nominal) ∆ VO vs TJ PT vs TA 100 ∆VO - Output Voltage Deviation - mV PT - Total Power Dissipation - W 25 with infinite heatsink 20 15 10 with 10 °C/W heatsink 5 without heatsink 0 25 50 75 100 125 150 TA - Operating Ambient Temperature - °C VO - Output Voltage - V IO = 5 mA 5 4 3 IO = 350 mA IO = 500 mA 2 1 0 1 2 3 4 5 6 7 8 9 IO = 5 mA 60 40 20 0 −20 −40 −60 −80 −100 −25 IBIAS - Operating Circuit Current - mA VO vs VIN 6 VIN = 9 V, 80 10 75 100 125 150 0 25 50 TJ - Operating Junction Temperature - °C IBIAS vs VIN 60 50 40 30 20 IO = 500 mA IO = 350 mA 10 IO = 5 mA 2 0 4 VIN - Input Voltage - V 60 50 40 30 6 100 14 16 18 20 70 60 50 40 30 6.5 V ≤ VIN ≤ 16.5 V f = 120 Hz 20 20 10 12 R⋅R vs IO 6.5 V ≤ VIN ≤ 16.5 V IO = 350 mA 70 10 80 R⋅R - Ripple Rejection - dB R⋅R - Ripple Rejection - dB 80 8 VIN - Input Voltage - V R⋅R vs f ⋅ 6 1k 10k f - Frequency - Hz 100k Data Sheet G14901EJ2V0DS00 0 100 200 300 400 IO - Output Current - mA 500 µ PC2260 IO peak vs (VIN − VO) td vs CDLY 1000 td - Reset Output Delay Time - ms IO peak - Peak Output Current - A 1.5 TJ = 0 °C TJ = 25 °C 1.0 TJ = 85 °C 0.5 0 TJ = 125 °C 100 10 1 0.1 0.001 5 10 15 20 VIN − VO - Input-Output Voltage Difference - V 0.1 1 0.01 CDLY - Delay Capacitance - µ F VRST vs VO 7 6 6 VRST - Reset Output Voltage - V VRST - Reset Output Voltage - V VRST vs VIN 7 5 4 IO = 5 mA 3 10 IO = 350 mA 2 IO = 500 mA 1 5 4 IO = 500 mA 3 IO = 350 mA 2 1 IO = 5 mA 0 1 2 3 4 5 6 7 8 VIN - Input Voltage -V 9 10 1 0 2 3 4 5 VO - Output Voltage - V 6 7 VRST vs VIN, VRST vs VO CHARACTERISTICS MEASUREMENT CIRCUIT INPUT OUTPUT 1 4 CIN 0.33 µ F DELAY CAPACITOR 5 3 GND 2 3 kΩ RESET Data Sheet G14901EJ2V0DS00 CO 47 µ F 7 µ PC2260 PACKAGE DRAWING 5-PIN PLASTIC V-DIP (V) A N E P L Q M D 1 5 K F G T S M U V W X H J I NOTE Each lead centerline is located within 0.25 mm of its true position (T.P.) at maximum material condition. ITEM A D 17.75±0.7 E φ 3.6±0.1 F G 0.75±0.1 0.25 H 3.4 I J K L M N P Q S T U V W X 8 Data Sheet G14901EJ2V0DS00 MILLIMETERS 10.4 MAX. 1.7 1.7 MAX. 5.0 MIN. 6.5 8.5 4.6±0.2 1.3±0.1 21.15 MAX. 4.75±0.7 4.3±0.7 2.8±0.2 0.45±0.1 3.9 4.25±0.5 P5VP-340B3-3 µ PC2260 RECOMMENDED SOLDERING CONDITIONS When soldering this product, it is highly recommended to observe the conditions as shown below. If other soldering processes are used, or if the soldering is performed under different conditions, please make sure to consult with our sales offices. For more details, refer to our document “Semiconductor Device Mounting Technology Manual” (C10535E). Type of Through-hole Device µ PC2260V : 5-pin plastic V-DIP (V) Process Wave soldering (only to leads) Conditions Solder temperature: 260°C or below, Flow time: 10 seconds or less. Caution For through-hole device, the wave soldering process must be applied only to leads, and make sure that the package body does not get jet soldered. Data Sheet G14901EJ2V0DS00 9 µ PC2260 [MEMO] 10 Data Sheet G14901EJ2V0DS00 µ PC2260 [MEMO] Data Sheet G14901EJ2V0DS00 11 µ PC2260 • The information in this document is current as of June, 2000. The information is subject to change without notice. For actual design-in, refer to the latest publications of NEC's data sheets or data books, etc., for the most up-to-date specifications of NEC semiconductor products. Not all products and/or types are available in every country. Please check with an NEC sales representative for availability and additional information. • No part of this document may be copied or reproduced in any form or by any means without prior written consent of NEC. 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