Electronic Components Datasheet Search |
|
LM3671MFX-1.6 Datasheet(PDF) 4 Page - National Semiconductor (TI) |
|
|
LM3671MFX-1.6 Datasheet(HTML) 4 Page - National Semiconductor (TI) |
4 / 16 page Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. V IN Pin: Voltage to GND −0.2V to 6.0V FB, SW, EN Pin: (GND−0.2V) to (V IN + 0.2V) Continuous Power Dissipation (Note 3) Internally Limited Junction Temperature (T J-MAX) +125˚C Storage Temperature Range −65˚C to +150˚C Maximum Lead Temperature (Soldering, 10 sec.) 260˚C ESD Rating (Note 4) Human Body Model: V IN,GND,SW,FB 2.0 kV Human Body Model: EN 500V Machine Model: All Pins 200V Operating Ratings (Notes 1, 2) Input Voltage Range 2.8V to 5.5V Recommended Load Current 0mA to 600 mA Junction Temperature (T J) Range −25˚C to +125˚C Ambient Temperature (T A) Range (Note 5) −25˚C to +85˚C Thermal Properties Junction-to-Ambient Thermal Resistance ( θ JA) (SOT23-5) (Note 6) 250˚C/W Electrical Characteristics (Notes 2, 9, 10) Limits in standard typeface are for T J = 25˚C. Limits in boldface type apply over the full operating junction temperature range (−25˚C ≤ T J ≤ +125˚C). Unless otherwise noted, specifications apply to the LM3671 Typical Application Circuit (Figure. 1) with V IN = EN = 3.6V, VOUT = 1.5V Symbol Parameter Condition Min Typ Max Units V IN Input Voltage Range (Note 11) 2.8 5.5 V V OUT Output Voltage I O =0 mA −2 +4 % I O = 100 mA −4 +4 % Line Regulation 2.8V ≤ V IN ≤ 5.5V I O =10 mA 0.045 %/V Load Regulation 100 mA ≤ I O ≤ 300 mA V IN= 3.6V 0.0031 %/mA V REF Internal Reference Voltage (Note 7) 0.5 V I SHDN Shutdown Supply Current EN = 0V 0.01 1 µA I Q_PFM DC Bias Current into V IN No load, device is not switching (FB forced higher than programmed output voltage) 16 35 µA R DSON (P) Pin-Pin Resistance for PFET V IN=VGS= 3.6V 380 500 m Ω R DSON (N) Pin-Pin Resistance for NFET V IN=VGS= 3.6V 250 400 m Ω I LIM Switch Peak Current Limit Open Loop (Note 8) 830 1020 1150 mA V IH Logic High Input 1.0 V V IL Logic Low Input 0.4 V I EN Enable (EN) Input Current 0.01 1 µA F OSC Internal Oscillator Frequency PWM Mode 1.6 2 2.6 MHz Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under which operation of the device is guaranteed. Operating Ratings do not imply guaranteed performance limits. For guaranteed performance limits and associated test conditions, see the Electrical Characteristics tables. 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 at TJ= 150˚C (typ.) and disengages at TJ= 130˚C (typ.). Note 4: The Human body model is a 100 pF capacitor discharged through a 1.5 k Ω resistor into each pin. The machine model is a 200 pF capacitor discharged directly into each pin. MIL-STD-883 3015.7 Note 5: In Applications where high power dissipation and/or poor package resistance is present, the maximum ambient temperature may have to be derated. Maximum ambient temperature (TA-MAX) is dependent on the maximum operating junction temperature (TJ-MAX), the maximum power dissipation of the device in the application (PD-MAX) and the junction to ambient thermal resistance of the package (θJA) in the application, as given by the following equation:TA-MAX=TJ-MAX− ( θJAxPD-MAX). Refer to Dissipation rating table for PD-MAX values at different ambient temperatures. Note 6: Junction to ambient thermal resistance is highly application and board layout dependent. In applications where high power dissipation exists, special care must be given to thermal dissipation issues in board design. Value specified here 250 ˚C/W is based on measurement results using a 2 layer, 4" x 3", 2 oz Cu board as per JEDEC standards. The ( θJA) can be as low as 140 ˚C/W if a 4 layer, 4" x 3", 2/1/1/2 oz. Cu board as per JEDEC standards is used. Note 7: For the ADJ version the resistor dividers should be selected such that at the desired output voltage,the voltage at the FB pin is 0.5V. www.national.com 4 |
Similar Part No. - LM3671MFX-1.6 |
|
Similar Description - LM3671MFX-1.6 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |