LM3671TL-1.5EV National Semiconductor, LM3671TL-1.5EV Datasheet
LM3671TL-1.5EV
Specifications of LM3671TL-1.5EV
Related parts for LM3671TL-1.5EV
LM3671TL-1.5EV Summary of contents
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... PB) versions. A high switching frequency of 2 MHz (typ.) al- lows use of tiny surface-mount components. Only three ex- ternal surface-mount components, an inductor and two ceramic capacitors, are required. Typical Application Circuits © 2008 National Semiconductor Corporation Features ■ 16 µA typical quiescent current ■ 600 mA maximum load capability ■ ...
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Connection Diagram and Package Mark Information SOT23-5 Package NS Package Number MF05A (2.92mm x 2.84mm x 1.2mm) FIGURE 4. 5-Bump Micro SMD Package NS Package Number TLA05CBA (1.05mm x 1.38mm x 0.6mm) www.national.com FIGURE 2. Typical Application Circuit for ADJ ...
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FIGURE 5. 6-Pin LLP Package Number LCA06B (2mm x 2mm x 0.6mm) Pin Descriptions (SOT23-5) Pin # Name GND Pin Descriptions (5-Bump Micro SMD) Pin # Name ...
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Ordering Information (SOT23-5) Voltage Option Order Number ADJ LM3671MF-ADJ LM3671MFX-ADJ LM3671MF-ADJ LM3671MFX-ADJ 1.2 LM3671MF-1.2 LM3671MFX-1.2 LM3671MF-1.2 LM3671MFX-1.2 1.25 LM3671MF-1.25 LM3671MFX-1.25 LM3671MF-1.25 LM3671MFX-1.25 1.375 LM3671MF-1.375 LM3671MFX-1.375 LM3671MF-1.375 LM3671MFX-1.375 1.5 LM3671MF-1.5 LM3671MFX-1.5 LM3671MF-1.5 LM3671MFX-1.5 1.6 LM3671MF-1.6 LM3671MFX-1.6 LM3671MF-1.6 LM3671MFX-1.6 1.8 LM3671MF-1.8 LM3671MFX-1.8 ...
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... LM3671TLX-1.2 1.5 LM3671TL-1.5 LM3671TLX-1.5 LM3671TL-1.5 LM3671TLX-1.5 1.8 LM3671TL-1.8 LM3671TLX-1.8 LM3671TL-1.8 LM3671TLX-1.8 1.875 LM3671TL-1.875 LM3671TLX-1.875 LM3671TL-1.875 LM3671TLX-1.875 2.5 LM3671TL-2.5 LM3671TLX-2.5 LM3671TL-2.5 LM3671TLX-2.5 2.8 LM3671TL-2.8 LM3671TLX-2.8 LM3671TL-2.8 LM3671TLX-2.8 3.3 LM3671TL-3.3 LM3671TLX-3.3 LM3671TL-3.3 LM3671TLX-3.3 Ordering Information (6-Pin LLP) Voltage Option Order Number 1.2 LM3671LC-1.2 LM3671LCX-1 ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. V Pin: Voltage to GND IN FB, SW, EN Pin: Continuous Power Dissipation (Note 3) Junction Temperature (T ) J-MAX Storage Temperature Range Maximum Lead Temperature (Soldering, 10 sec.) ...
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Note 2: All voltages are with respect to the potential at the GND pin. Note 3: Internal thermal shutdown circuitry protects the device from permanent damage. Thermal shutdown engages 130°C (typ.). J Note 4: The Human ...
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Block Diagram www.national.com FIGURE 6. Simplified Functional Diagram 8 20108418 ...
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Typical Performance Characteristics LM3671MF/TL/LC, Circuit of Figure 1, V Quiescent Supply Current vs. Supply Voltage Feedback Bias Current vs. Temp R vs. Temperature DS(ON) = 3.6V 1.5V 25°C, unless otherwise noted. IN OUT A 20108404 Switching ...
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Output Voltage vs. Supply Voltage (V = 1.5V) OUT Output Voltage vs. Temperature (V = 1.5V) OUT Output Voltage vs. Output Current (V = 1.5V) OUT www.national.com Output Voltage vs. Supply Voltage 20108429 Output Voltage vs. Temperature 20108406 Output Voltage ...
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Efficiency vs. Output Current (V = 1.5V, L= 2.2 µH) OUT 20108408 Efficiency vs. Output Current (V = 2.5V, L= 2.2 µH) OUT 20108441 Line Transient Response V = 1.5V (PWM Mode) OUT 20108412 Efficiency vs. Output Current (V = ...
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Load Transient Response V = 1.5V (PWM Mode) OUT Load Transient Response (V (PFM Mode 0.5mA to 50mA) Load Transient Response (V (PFM Mode 0.5mA to 50mA) www.national.com 20108413 = 1.5V) Load Transient Response (V OUT 20108414 = 2.5V) Load ...
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Mode Change by Load Transients V = 1.5V (PFM to PWM) OUT Mode Change by Load Transients V = 2.5V (PFM to PWM) OUT Start Up into PWM Mode V = 1.5V (Output Current= 300mA) OUT Mode Change by Load ...
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Start Up into PFM Mode V = 1.5V (Output Current= 1mA) OUT www.national.com Start Up into PFM Mode V = 2.5V (Output Current= 1mA) OUT 20108419 14 20108457 ...
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Operation Description DEVICE INFORMATION The LM3671, a high efficiency step down DC-DC switching buck converter, delivers a constant voltage from a single Li- Ion battery and input voltage rails from 2.7V to 5.5V to portable devices such as cell phones ...
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FIGURE 8. Typical PFM Operation During PFM operation, the converter positions the output volt- age slightly higher than the nominal output voltage during PWM operation, allowing additional headroom for voltage drop during a load transient from light to heavy load. ...
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Typical start-up times with a 10µF output capacitor and 300mA load is 400 µs and with 1mA load is 275µs. LDO - LOW DROP OUT OPERATION The LM3671-ADJ can operate at 100% duty cycle (no ...
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LM3671-ADJ Configurations For Various V (Refer to Note 11 for VIN requirements) V (V) R1(kΩ) OUT 0.90 160 1.1 240 1.2 280 1.3 320 1.5 357 1.6 442 1.7 432 1.8 464 1.875 523 2.5 402 2.8 464 3.3 562 ...
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... Micro SMD PACKAGE ASSEMBLY AND USE Use of the Micro SMD package requires specialized board layout, precision mounting and careful re-flow techniques, as detailed in National Semiconductor Application Note 1112. Refer to the section "Surface Mount Technology (SMD) As- sembly Considerations". For best results in assembly, align- ment ordinals on the PC board should be used to facilitate placement of the device ...
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The Micro SMD package is optimized for the smallest possi- ble size in applications with red or infrared opaque cases. ...
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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 5-Lead SOT23-5 Package NS Package Number MF05A 5-Bump (Large) Micro SMD Package, 0.5mm Pitch NS Package Number TLA05CBA The dimensions for X1, X2, and X3 are as given 1.057 mm ...
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LLP Package, 0.5mm Pitch NS Package Number LCA06B The dimensions for X1, X2, and X3 are as given 2.000 mm +/- 0.100mm X2 = 2.000 mm +/- 0.100mm X3 = 0.600 mm +/- 0.075mm 23 www.national.com ...
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