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LP38691-ADJ Datasheet(PDF) 3 Page - Texas Instruments |
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LP38691-ADJ Datasheet(HTML) 3 Page - Texas Instruments |
3 / 22 page LP38691-ADJ, LP38693-ADJ www.ti.com SNVS324I – JANUARY 2005 – REVISED APRIL 2013 Absolute Maximum Ratings (1) (2) Storage Temperature Range −65°C to +150°C Lead Temp. (Soldering, 5 seconds) 260°C ESD Rating(3) 2 kV Power Dissipation(4) Internally Limited V(max) All pins (with respect to GND) -0.3V to 12V IOUT (5) Internally Limited Junction Temperature −40°C to +150°C (1) Absolute maximum ratings indicate limits beyond which damage to the component may occur. Operating ratings indicate conditions for which the device is intended to be functional, but do not ensure specific performance limits. For ensured specifications, see Electrical Characteristics. Specifications do not apply when operating the device outside of its rated operating conditions. (2) If Military/Aerospace specified devices are required, please contact the TI Office/ Distributors for availability and specifications. (3) ESD is tested using the human body model which is a 100pF capacitor discharged through a 1.5k resistor into each pin. (4) At elevated temperatures, device power dissipation must be derated based on package thermal resistance and heatsink values (if a heatsink is used). The junction-to-ambient thermal resistance ( θJ-A) for the SOT-223 is approximately 125 °C/W for a PC board mounting with the device soldered down to minimum copper area (less than 0.1 square inch). If one square inch of copper is used as a heat dissipator for the SOT-223, the θJ-A drops to approximately 70 °C/W. The θJ-A values for the WSON package are also dependent on trace area, copper thickness, and the number of thermal vias used (refer to TI AN-1187 Application Report and the WSON MOUNTING section in this datasheet). If power dissipation causes the junction temperature to exceed specified limits, the device will go into thermal shutdown. (5) If used in a dual-supply system where the regulator load is returned to a negative supply, the output pin must be diode clamped to ground. Operating Ratings VIN Supply Voltage 2.7V to 10V Operating Junction −40°C to +125°C Temperature Range Electrical Characteristics Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature range. Unless otherwise specified: VIN = VOUT + 1V, CIN = COUT = 10 µF, ILOAD = 10mA. Min/Max limits are specified through testing, statistical correlation, or design. Symbol Parameter Conditions Min Typ(1) Max Units VIN = 2.7V 1.225 1.25 1.275 VADJ ADJ Pin Voltage V 3.2V ≤ VIN ≤ 10V 1.200 1.25 1.300 100 µA < IL < 0.5A ΔVO/ΔVIN Output Voltage Line Regulation(2) VO + 0.5V ≤ VIN ≤ 10V 0.03 0.1 %/V IL = 25mA ΔVO/ΔIL Output Voltage Load Regulation(3) 1 mA < IL < 0.5A 1.8 5 %/A VIN = VO + 1V (VO = 2.5V) 80 145 IL = 0.1A 430 725 IL = 0.5A (VO = 3.3V) 65 110 VIN - VO Dropout Voltage(4) IL = 0.1A mV 330 550 IL = 0.5A (VO = 5V) 45 100 IL = 0.1A 250 450 IL = 0.5A IQ Quiescent Current VIN ≤ 10V, IL = 100 µA - 0.5A 55 100 VEN ≤ 0.4V, 0.001 1 µA (LP38693-ADJ Only) IL(MIN) Minimum Load Current VIN - VO ≤ 4V 100 (1) Typical numbers represent the most likely parametric norm for 25°C operation. (2) Output voltage line regulation is defined as the change in output voltage from nominal value resulting from a change in input voltage. (3) Output voltage load regulation is defined as the change in output voltage from nominal value as the load current increases from 1mA to full load. (4) Dropout voltage is defined as the minimum input to output differential required to maintain the output within 100mV of nominal value. Copyright © 2005–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: LP38691-ADJ LP38693-ADJ |
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