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LM3207 Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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LM3207 Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 19 page Absolute Maximum Ratings (Notes 1, 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. PV IN to SGND −0.2V to +6.0V PGND to SGND −0.2V to +0.2V EN, FB, V CON,ENLDO, LDO (SGND −0.2V) to (V DD +0.2V) w/6.0V max SW (PGND −0.2V) to (PV IN +0.2V) w/6.0V max PV IN −0.2V to +0.2V Continuous Power Dissipation (Note 3) Internally Limited Junction Temperature (T J-MAX) +150˚C Storage Temperature Range −65˚C to +150˚C Maximum Lead Temperature (Soldering, 10 sec) +260˚C Operating Ratings (Notes 1, 2) Input Voltage Range 2.7V to 5.5V Recommended Load Current 0mA to 650mA Junction Temperature (T J) Range −30˚C to +125˚C Ambient Temperature (T A) Range (Note 4) −30˚C to +85˚C Thermal Properties Junction-to-Ambient Thermal 100˚C/W Resistance ( θ JA), TLA09 Package (Note 5) Electrical Characteristics (Notes 2, 6, 7) Limits in standard typeface are for T A =TJ = 25˚C. Limits in bold- face type apply over the full operating ambient temperature range (−30˚C ≤ T A =TJ ≤ +85˚C). Unless otherwise noted, all specifications apply to LM3207 with: PV IN =VIN =ENLDO = EN = 3.6V. Symbol Parameter Conditions Min Typ Max Units LDO V LDO LDO Output Voltage Iout=0mA 2.875 2.95 V V LDO,MIN Minimum LDO Output Voltage Iout = 10mA, PV IN =3V 2.80 V I SC Short circuit current(DC) V LDO = 0 50 mA I PUT Pull-up current (transient) V LDO =VLDO(nom)/2, PVIN =3V (Note 12) 150 mA I PD DC Pull-down current (DC) V LDO =PVIN,ENLDO = 0 -50 mA I PDT Pull-down current (transient) V LDO =VLDO(nom)/2, PVIN =3V (Note 12) -200 mA I Q_LDO + PWM DC Bias current into PV IN V CON = 2V, FB = 0V, No Switching, EN LDO = EN = 3.6V (Note 9) 1.2 1.6 mA I PIN,ENLDO LDO Pin pull down current 5 10 uA Switcher V FB, MIN Feedback Voltage at minimum setting V CON = 0.32V 0.75 0.8 0.85 V V FB, MAX Feedback Voltage at maximum setting V CON = 1.44V, PVIN = 4.2V 3.537 3.6 3.683 V I SHDN Shutdown supply current EN = EN LDO=SW=VCON = 0V, (Note 8) 0.01 2 µA I Q_PWM DC bias current into PV IN V CON = 2V, FB = 0V, ENLDO =0V, EN = 3.6V, No Switching (Note 9) 1.1 1.6 mA R DSON(P) Pin-pin resistance for PFET I SW = 200mA 140 200 m Ω 230 R DSON(N) Pin-pin resistance for NFET I SW = - 200mA 300 415 m Ω 485 I LIM,PFET Switch peak current limit (Note 10) 935 1100 1200 mA F OSC Internal oscillator frequency 1.7 2 2.3 MHz V IH,EN Logic high input threshold (PWM, LDO) 1.2 V V IL,EN Logic low input threshold (PWM, LDO) 0.5 V www.national.com 3 |
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