LM9036_08

LM9036 Ultra-Low Quiescent Current Voltage Regulator July 10, 2008 LM9036 Ultra-Low Quiescent Current Voltage Regulator General Description The LM9036 ultra-low quiescent current regulator features low dropout voltage and low current in the standby mode. With less than 25µA Ground Pin current at a 0.1mA load, the LM9036 is ideally suited for automotive and other battery operated systems. The LM9036 retains all of the features that are common to low dropout regulators including a low dropout PNP pass device, short circuit protection, reverse battery protection, and thermal shutdown. The LM9036 has a 40V maximum operating voltage limit, a −40°C to +125°C operating temperature range, and ±5% output voltage tolerance over the entire output current, input voltage, and temperature range. Features ■ Ultra low Ground Pin current (IGND ≤ 25µA for IOUT ■ ■ ■ ■ ■ ■ ■ = 0.1mA) Fixed 5V, 3.3V, 50mA output Output tolerance ±5% over line, load, and temperature Dropout voltage typically 200mV @ IOUT = 50mA −45V reverse transient protection Internal short circuit current limit Internal thermal shutdown protection 40V operating voltage limit Typical Application 20001101 * Required if regulator is located more than 2″ from power supply filter capacitor. ** Required for stability. Must be rated over intended operating temperature range. Effective series resistance (ESR) is critical, see Electrical Characteristics. Locate capacitor as close as possible to the regulator output and ground pins. Capacitance may be increased without bound. © 2008 National Semiconductor Corporation 200011 www.national.com Connection Diagrams TO-252 20001125 Top View Order Number LM9036DT-5.0, LM9036DTX-5.0, LM9036DT-3.3, LM9036DTX-3.3 See NS Package Number TD03B 20001127 20001128 Top View LM9036MM-3.3, , LM9036MMX-3.3, LM9036MM-5.0, LM9036MMX-5.0 See NS Package Number MUA08A Top View LM9036M-3.3, LM9036MX-3.3, LM9036M-5.0, LM9036MX-5.0 See NS Package Number M08A Ordering Information Output Voltage Order LM9036M-3.3 LM9036MX-3.3 3.3V LM9036DT-3.3 LM9036DTX-3.3 LM9036MM-3.3 LM9036MMX-3.3 LM9036M-5.0 LM9036MX-5.0 5.0V LM9036DT-5.0 LM9036DTX-5.0 LM9036MM-5.0 LM9036MMX-5.0 Package Type 8-Lead SOIC 8-Lead SOIC TO-252 TO-252 8-Lead Mini SOIC 8-Lead Mini SOIC 8-Lead SOIC 8-Lead SOIC TO-252 TO-252 8-Lead Mini SOIC 8-Lead Mini SOIC Package Drawing M08A M08A TD03B TD03B MUA08A MUA08A M08A M08A TD03B TD03B MUA08A MUA08A Transport Media Rail Tape/Reel Rail Tape/Reel Rail Tape/Reel Rail Tape/Reel Rail Tape/Reel Rail Tape/Reel www.national.com 2 Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Input Voltage (Survival) ESD Susceptibility (Note 2) Power Dissipation (Note 3) Junction Temperature (TJmax) Storage Temperature Range +55V, −45V ±1.9kV Internally limited 150°C −65°C to +150°C Lead Temperature (Soldering, 10 sec.) 260°C Operating Ratings Operating Temperature Range Maximum Input Voltage (Operational) SO-8 (M08A) θJA (Note 7) TO-252 (TD03B) θJA (Note 7) TO-252 (TD03B) θJA (Note 8) TO-252 (TD03B) θJC (Note 7) MSO-8 (MUA08A) θJA (Note 7) −40°C to +125°C 40V 140°C/W 125°C/W 50°C/W 11°C/W 200°C/W Electrical Characteristics - LM9036-5.0 VIN = 14V, IOUT = 10 mA, TJ = 25°C, unless otherwise specified. Boldface limits apply over entire operating temperature range Parameter Conditions Min (Note 5) 4.80 Output Voltage (VOUT) 5.5V ≤ VIN ≤ 26V, 0.1mA ≤ IOUT ≤ 50mA (Note 6) 4.75 Typical (Note 4) 5.00 5.00 20 50 0.3 2.0 10 10 10 0.05 0.20 65 −40 10 120 −60 22 Max (Note 5) 5.20 5.25 25 100 0.5 2.5 30 30 30 0.10 0.40 250 mA mV mV mV V V mA dB µF µA V Units IOUT = 0.1mA, 8V ≤ VIN ≤ 24V Quiescent Current (IGND) IOUT = 1mA, 8V ≤ VIN ≤ 24V IOUT = 10mA, 8V ≤ VIN ≤ 24V IOUT = 50mA, 8V ≤ VIN ≤ 24V Line Regulation (Δ VOUT) Load Regulation (Δ VOUT) Dropout Voltage (Δ VOUT) Short Circuit Current (ISC) Ripple Rejection (PSRR) Output Bypass Capacitance (COUT) 6V ≤ VIN ≤ 40V, IOUT = 1mA 0.1mA ≤ IOUT ≤ 5mA 5mA ≤ IOUT ≤ 50mA IOUT = 0.1mA IOUT = 50mA VOUT = 0V Vripple = 1Vrms, Fripple = 120Hz 0.3Ω ≤ ESR ≤ 8Ω 0.1mA ≤ IOUT ≤ 50mA 3 www.national.com Electrical Characteristics - LM9036-3.3 VIN = 14V, IOUT = 10 mA, TJ = 25°C, unless otherwise specified. Boldface limits apply over entire operating temperature range Parameter Conditions Min (Note 5) 3.168 Output Voltage (VOUT) 5.5V ≤ VIN ≤ 26V, 0.1mA ≤ IOUT ≤ 50mA (Note 6) 3.135 Typical (Note 4) 3.30 3.30 20 50 0.3 2.0 10 10 10 0.05 0.20 65 −40 22 120 −60 33 Max (Note 5) 3.432 3.465 25 100 0.5 2.5 30 30 30 0.10 0.40 250 mA mV mV mV V V mA dB µF µA V Units IOUT = 0.1mA, 8V ≤ VIN ≤ 24V Quiescent Current (IGND) IOUT = 1mA, 8V ≤ VIN ≤ 24V IOUT = 10mA, 8V ≤ VIN ≤ 24V IOUT = 50mA, 8V ≤ VIN ≤ 24V Line Regulation (Δ VOUT) Load Regulation (Δ VOUT) Dropout Voltage (Δ VOUT) Short Circuit Current (ISC) Ripple Rejection (PSRR) Output Bypass Capacitance (COUT) 6V ≤ VIN ≤ 40V, IOUT = 1mA 0.1mA ≤ IOUT ≤ 5mA 5mA ≤ IOUT ≤ 50mA IOUT = 0.1mA IOUT = 50mA VOUT = 0V Vripple = 1Vrms, Fripple = 120Hz 0.3Ω ≤ ESR ≤ 8Ω 0.1mA ≤ IOUT ≤ 50mA Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating the device beyond its specified operating ratings. Note 2: Human body model, 100pF discharge through a 1.5kΩ resistor. Note 3: The maximum power dissipation is a function of TJmax, θJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD = (TJmax − TA)/θJA. If this dissipation is exceeded, the die temperature will rise above 150°C and the LM9036 will go into thermal shutdown. Note 4: Typicals are at 25°C (unless otherwise specified) and represent the most likely parametric norm. Note 5: Tested limits are guaranteed to National's AOQL (Average Outgoing Quality Level) and 100% tested. Note 6: To ensure constant junction temperature, pulse testing is used. Note 7: Worst case (Free Air) per EIA / JESD51-3. Note 8: Typical θJA with 1 square inch of 2oz copper pad area directly under the ground tab. www.national.com 4 Typical Performance Characteristics Dropout Voltage Quiescent Current 20001108 20001111 Quiescent Current Quiescent Current 20001113 20001114 Peak Output Current 20001117 5 www.national.com Applications Information Unlike other PNP low dropout regulators, the LM9036 remains fully operational to 40V. Owing to power dissipation characteristics of the package, full output current cannot be guaranteed for all combinations of ambient temperature and input voltage. The junction to ambient thermal resistance θJA rating has two distinct components: the junction to case thermal resistance rating θJC; and the case to ambient thermal resistance rating θCA. The relationship is defined as: θJA = θJC + θCA. On the TO-252 package the ground tab is thermally connected to the backside of the die. Adding 1 square inch of 2 oz. copper pad area directly under the ground tab will improve the θJA rating to approximately 50°C/W. While the LM9036 has an internally set thermal shutdown point of typically 150°C, this is intended as a safety feature only. Continuous operation near the thermal shutdown temperature should be avoided as it may have a negative affect on the life of the device. Using the θJA for a LM9036DT mounted on a circuit board as defined at (Note 8), and using the formula for maximum allowable dissipation given in (Note 3) for an ambient temperature (TA) of +85°C, we find that PDMAX = 1.3W. Including the small contribution of the quiescent current IQ to the total power dissipation, the maximum input voltage (while still delivering 50mA output current) is 29.5V. The LM9036DT will go into thermal shutdown when attempting to deliver the full output current of 50mA, with an ambient temperature of +85°C, and the input voltage is greater than 29.5V. Similarly, with an ambient temperature of 25°C the PDMAX = 2.5W, and the LM9036DT can deliver the full output current of 50mA with an input voltage of up to 40V. While the LM9036 maintains regulation to 55V, it will not withstand a short circuit above 40V because of safe operating area limitations in the internal PNP pass device. Above 55V the LM9036 will break down with catastrophic effects on the regulator and possibly the load as well. Do not use this device in a design where the input operating voltage may exceed 40V, or where transients are likely to exceed 55V. www.national.com 6 Physical Dimensions inches (millimeters) unless otherwise noted TO-252 Package (DT) NS Package Number TD03B 8 Lead Small Outline Molded Package (M) NS Package Number M08A 7 www.national.com 8 Lead Mini SOIC (MM) NS Package Number MUA08A www.national.com 8 Notes 9 www.national.com LM9036 Ultra-Low Quiescent Current Voltage Regulator Notes For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers Audio Clock Conditioners Data Converters Displays Ethernet Interface LVDS Power Management Switching Regulators LDOs LED Lighting PowerWise Serial Digital Interface (SDI) Temperature Sensors Wireless (PLL/VCO) www.national.com/amplifiers www.national.com/audio www.national.com/timing www.national.com/adc www.national.com/displays www.national.com/ethernet www.national.com/interface www.national.com/lvds www.national.com/power www.national.com/switchers www.national.com/ldo www.national.com/led www.national.com/powerwise www.national.com/sdi www.national.com/tempsensors www.national.com/wireless WEBENCH Analog University App Notes Distributors Green Compliance Packaging Design Support www.national.com/webench www.national.com/AU www.national.com/appnotes www.national.com/contacts www.national.com/quality/green www.national.com/packaging www.national.com/quality www.national.com/refdesigns www.national.com/feedback Quality and Reliability Reference Designs Feedback THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION (“NATIONAL”) PRODUCTS. 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