LM3691TL-1.5 National Semiconductor, LM3691TL-1.5 Datasheet
LM3691TL-1.5
Related parts for LM3691TL-1.5
LM3691TL-1.5 Summary of contents
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... The LM3691 is available in a 6–bump micro SMD package. Only three external surface-mount components μH in- ductor, a 4.7 μF input capacitor and a 4.7 μF output capacitor, are required. Typical Application Circuit FIGURE 1. Typical Application Circuit © 2009 National Semiconductor Corporation Features ■ 0.75V to 3.3V OUT ■ ...
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Connection Diagram and Package Mark Information FIGURE 2. 6-Bump Thin Micro SMD Package, Large Bump Note: The actual physical placement of the package marking will vary from part to part. The package marking “X” designates the date code; “V” is ...
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... LM3691TL-1.1 LM3691TLX–1.1 1.2 LM3691TL–1.2 LM3691TLX–1.2 1.3* LM3691TL–1.3 LM3691TLX–1.3 1.375* LM3691TL–1.375 LM3691TLX–1.375 1.5 LM3691TL–1.5 LM3691TLX–1.5 1.6* LM3691TL–1.6 LM3691TLX–1.6 1.8 LM3691TL–1.8 LM3691TLX–1.8 2.5 LM3691TL–2.5 LM3691TLX–2.5 3.3* LM3691TL-3.3 LM3691TLX-3 any of the voltage options other than the released voltages are required, please contact the National Semiconductor Sales Office/Distributors for availability. ...
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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. If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. V Pin to GND IN EN, MODE pin to GND ...
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Block Diagram FIGURE 3. Simplified Functional Diagram 5 30013431 www.national.com ...
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... T A noted. Quiescent Supply current vs. Supply Voltage No Switching (ECO Mode) Shutdown Current vs. Temp (V = 1.8V) OUT www.national.com LM3691TL Typical Application Circuit (page 1 4.7 μF, 0603(1608), 6.3V, (C1608X5R0J475K) unless otherwise = C IN OUT Quiescent Supply current vs. Supply Voltage No Switching (PWM Mode) 30013455 Switching Frequency vs. Temp (V OUT ...
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Output Voltage vs. Supply Voltage (V = 0.75V) OUT 30013459 Output Voltage vs. Output Current (V = 0.75V) OUT 30013461 Input Current vs. Output Current (V = 0.75V) OUT 30013463 Output Voltage vs. Supply Voltage (V = 1.8V) OUT Output ...
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Efficiency vs. Output Current (V = 0.75V, ECO Mode) OUT Efficiency vs. Output Current (V = 2.5V, ECO Mode) OUT Efficiency vs. Output Current (V = 1.8V, FPWM Mode) OUT www.national.com Efficiency vs. Output Current (V OUT 30013465 Efficiency vs. ...
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Load Current Threshold vs. Supply Voltage (V = 0.75V, ECO Mode to PWM Mode) OUT Output Voltage Ripple vs. Supply Voltage (V = 0.75V) OUT Output Voltage Ripple vs. Supply Voltage (V = 1.8V) OUT Load Current Threshold vs. Supply ...
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Closed Loop Current Limit vs. Temperature (V = 1.8V) OUT Line Transient Reponse (V = 1.8V, PWM Mode) OUT Load Transient Reponse (V = 0.75V, ECO Mode 1mA) OUT www.national.com Line Transient Reponse (V = 0.75V, PWM ...
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Load Transient Reponse (V = 1.8V, ECO Mode 1mA) OUT Load Transient Reponse (V = 0.75V, PWM Mode to ECO Mode) OUT Load Transient Reponse (V = 2.5V, ECO Mode to PWM Mode) OUT Load Transient Reponse ...
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Load Transient Reponse (V = 1.8V, FPWM Mode) OUT Load Transient Reponse (V = 1.8V, PWM Mode) OUT Start Up into ECO Mode (V = 0.75V, R OUT OUT www.national.com 30013490 30013492 = 750Ω) 30013495 12 Load Transient Reponse (V ...
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Start Up into ECO Mode (V = 1.8V 1.8 kΩ) OUT OUT 30013493 Start Up into PWM Mode (V = 1.8V, R OUT OUT 13 = 6Ω) 30013494 www.national.com ...
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Operation Description DEVICE INFORMATION The LM3691, a high-efficiency, step-down DC-DC switching buck converter, delivers a constant voltage from either a sin- gle Li-Ion or three cell NiMH/NiCd battery to portable devices such as cell phones and PDAs. Using a voltage ...
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FIGURE 5. Typical ECO Operation FORCED PWM MODE Setting Mode pin high (>1.2V) places the LM3691 in Forced PWM. The part is in forced PWM regardless of the load. SHUTDOWN MODE Setting the EN input pin low (<0.4V) places the ...
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Application Information INDUCTOR SELECTION DC bias current characteristics of inductors must be consid- ered. Different manufacturers follow different saturation cur- rent rating specifications, so attention must be given to details. DC bias curves should be requested from them as part ...
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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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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 6–bump Thin Micro SMD, Large Bump NS Package Number TLA06LCA X1 = 1.260 mm ± 0.030 1.565 mm ± 0.030 0.600 mm ± 0.075 mm 18 ...
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