LTP3637-18YT5

LTP3637 P-1 DESCRIPTION The LTP3637 series of CMOS low dropout regulators are designed specifically for portable batterypowered applications which require ultralow quiescent current. The ultralow consumption of typical 0.8 μA ensures long battery life and dynamic transient boost feature improves device transient response for wireless communication applications. The device is available in SOT23-5L packages. FEATURES          Operating Input Voltage Range: 2.0 V to 5.5 V Optional Output Voltages: 1.2 V, 1.5 V, 1.8 V, 2.5 V, 2.8 V, 3.0 V, 3.3 V, 3.6 V Ultra-Low Quiescent Current: 0.8 μA Typically Low Dropout: 170 mV Typically at 150 mA and VOUT = 1.8 V High Output Voltage Accuracy ±1.5% Stable with Ceramic Capacitors 1 μF Over-Current Protection Thermal Shutdown Protection With auto discharge function at off state APPLICATIONS     Battery Powered Equipments Portable Communication Equipments Cameras, Image Sensors and Camcorders Label Information ORDER INFORMATION Model Package Ordering Number Note1 Packing Option LTP3637 SOT23-5L LTP3637-xxYT5 Tape and Reel, 3000 Note1: xx stands for output voltages, e.g. if xx = 18, the output voltage is 1.8 V; if xx = 30, the output voltage is 3.0 V. CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. Linearin and designs are registered trademarks of Linearin Technology Corporation. © Copyright Linearin Technology Corporation. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. FN1620-2N.1 — Data Sheet Ultra-Low IQ 300 mA CMOS LDO Regulators LTP3637 P-2 PIN CONFIGURATION (Top View) IN 1 GND 2 EN 3 5 OUT 4 NC SOT23-5L PIN DESCRIPTIONS Pin SOT23-5 Symbol Description 1 IN Power Supply Input Voltage 2 GND 3 EN Chip Enable Pin, not suspended. 4 NC No Connection. 5 OUT Output Pin Ground. ABSOLUTE MAXIIMUM RATINGS Parameter Symbol Value Unit Input Voltage VIN 6.5 V Output Voltage VOUT −0.3 to VIN + 0.3 V Chip Enable Input VEN −0.3 to 6.0 V TJ 150 °C Storage Temperature TSTG −55 to 150 °C Thermal Characteristics, Thermal Resistance, Junction-to-Air RθJA Operating Junction Temperature Human Body Model ESD Capability Current Maximum Rating ESD Latch up SOT23-5L 250 °C /W 6000 V 2000 V 200 mA NOTE：Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. Linearin and designs are registered trademarks of Linearin Technology Corporation. © Copyright Linearin Technology Corporation. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. FN1620-2N.1 — Data Sheet Ultra-Low IQ 300 mA CMOS LDO Regulators LTP3637 P-3 CAUTION This integrated circuit can be damaged by ESD if you don’t pay attention to ESD protection. LINEARIN recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. LINEARIN reserves the right to make any change in circuit design, specification or other related things if necessary without notice at any time. Please contact LINEARIN sales office to get the latest datasheet. RECOMMENDED OPERATING CONDITIONS Symbol Item Rating Unit VIN Input Voltage 2.0 to 5.5 V IOUT Output Current 0 to 300 mA TA Operating Ambient Temperature −40 to 85 ℃ CIN Effective Input Ceramic Capacitor Value 0.47 to 4.7 μF COUT Effective Output Ceramic Capacitor Value 0.47 to 4.7 μF ELECTRICAL CHARACTERISTICS VIN = 2.5 V, IOUT = 1 mA, CIN = 1 µF, COUT = 1 µF, TA = +25 °C, unless otherwise noted. Symbol Parameter Test Conditions Min Typ Max Unit VIN Operating Input 2.0 5.5 V VOUT Output Voltage TA = +25 °C −1.5 +1.5 −40 °C ≤ TA ≤ 85 °C −2.5 +2.5 % IQ Quiescent Current IOUT = 0 mA 1.1 μA ISD Shutdown Current VEN = 0 V LineReg Line Regulation 2.5 V ≤ VIN ≤ 5.5 V, IOUT = 1 mA 0.1 LoadReg Load Regulation 1 mA ≤ IOUT ≤ 150 mA, VIN = 2.5 V 20 mV VDROP Dropout Voltage IOUT = 150 mA 170 mV I_LMT Current Limit ISHORT Short Circuit Current VOUT = 0 V PSRR Power supply Rejection Ratio IOUT = 100 mA eN Output Noise Voltage VIN = 2.5 V, IOUT = 1 mA, f = 10 Hz to 100 kHz, COUT = 1 μF 0.8 0.1 300 90 0.2 550 %/V mA mA f = 1 kHz −55 f = 10 kHz −52 dB 100 μVrms CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. Linearin and designs are registered trademarks of Linearin Technology Corporation. © Copyright Linearin Technology Corporation. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. FN1620-2N.1 — Data Sheet Ultra-Low IQ 300 mA CMOS LDO Regulators LTP3637 P-4 APPLICATION CIRCUITS 1 INPUT 1μF Chip Enable 2 3 IN OUT 5 OUTPUT 1μF GND EN 4 Note: The EN pin is not suspended Applications Information General The LTP3637 is a high performance 300mA Linear Regulator with Ultra Low I Q. This device delivers low Noise and high Power Supply Rejection Ratio with excellent dynamic performance due to employing the Dynamic Quiescent Current adjustment which assure ultra low I Q consumption at noload state. These parameters make the device very suitable for various battery powered applications. Input Decoupling (C IN) It is recommended to connect at least a 1μF Ceramic X5R or X7R capacitor between IN and GND pins of the device. This capacitor will provide a low impedance path for any unwanted AC signals or Noise superimposed onto constant Input Voltage. The good input capacitor will limit the influence of input trace inductances and source resistance during sudden load current changes. Higher capacitance and lower ESR Capacitors will improve the overall line transient response. Output Decoupling (C OUT) The LTP3637 does not require a minimum Equivalent Series Resistance (ESR) for the output capacitor. The X5R and X7R types have the lowest capacitance variations over temperature thus they are recommended. There is recommended connect the output capacitor as close as possible to the output pin of the regulator. Current Limit Protection When output current at the OUT pin is higher than current limit threshold, the current limit protection will be triggered and clamp the output current to approximately 550mA to prevent over-current and to protect the regulator from damage due to overheating. Thermal Shutdown When the die temperature exceeds the Thermal Shutdown point (T SD =160° C typically) the device goes to disabled state and the output voltage is not delivered until the die temperature decreases to 150° C. The Thermal Shutdown feature provides a protection from a catastrophic device failure at accidental overheating. This protection is not intended to be used as a substitute for proper heat sinking. CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. Linearin and designs are registered trademarks of Linearin Technology Corporation. © Copyright Linearin Technology Corporation. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. FN1620-2N.1 — Data Sheet Ultra-Low IQ 300 mA CMOS LDO Regulators LTP3637 P-5 Power Dissipation and Heat sinking The maximum power dissipation supported by the device is dependent upon board design and layout. Mounting pad configuration on the PCB, the board material and the ambient temperature affect the rate of junction temperature rise for the part. The maximum power dissipation the LTP3637 device can handle is given by: PD(MAX) = TJ(MAX) - TA PθJA CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. Linearin and designs are registered trademarks of Linearin Technology Corporation. © Copyright Linearin Technology Corporation. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. (equation-1) FN1620-2N.1 — Data Sheet Ultra-Low IQ 300 mA CMOS LDO Regulators LTP3637 P-6 PACKAGE OUTLINE SOT23-5L D d θ E L E1 e e1 A1 c A Unit:mm Symbol A A1 b c D E E1 e e1 L θ Dimensions In Millimeters MIN MAX 1.050 1.250 0.000 0.350 0.100 0.500 0.080 2.820 2.600 0.200 3.020 3.000 1.600 1.700 0.950BSC 1.800 2.000 0.300 0° 0.600 8° CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. Linearin and designs are registered trademarks of Linearin Technology Corporation. © Copyright Linearin Technology Corporation. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. FN1620-2N.1 — Data Sheet Ultra-Low IQ 300 mA CMOS LDO Regulators