Datasheet LTC3600 (Analog Devices) - 3
| Hersteller | Analog Devices |
| Beschreibung | 15V, 1.5A Synchronous Rail-to-Rail Single Resistor Step-Down Regulator |
| Seiten / Seite | 28 / 3 — elecTrical characTerisTics. The. denotes the specifications which apply … |
| Dateiformat / Größe | PDF / 852 Kb |
| Dokumentensprache | Englisch |
elecTrical characTerisTics. The. denotes the specifications which apply over the specified operating
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LTC3600
elecTrical characTerisTics The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 12V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN VIN Supply Range 4 15 V ISET ISET Reference Current 49.5 50 50.5 µA l 49.3 50 51 µA ISET Line Regulation l 0.02 0.05 %/V ISET DROP_OUT Voltage ISET > 45µA, VIN – VSET 340 mV ISET Load Regulation IOUT = 0 to 1.5A 0.25 µA Error Amp Input Offset (Note 4) –3 3 mV Error Amp Load Regulation l 0.05 0.1 % Minimum VOUT Voltage VISET = 0, ROUT = 0 10 mV gm(EA) Error Amplifier Transconductance 0.63 0.9 mS tON(MIN) Minimum On-Time 30 ns tOFF(MIN) Minimum Off-Time 130 ns ILIM Current Limit l 1.6 2 2.4 A Negative Current Limit –0.9 A RTOP Top Power NMOS On-Resistance 200 mΩ RBOTTOM Bottom Power NMOS On-Resistance 100 mΩ VUVLO INTVCC Undervoltage Lockout Threshold INTVCC Rising 3.45 3.7 V UVLO Hysteresis INTVCC Falling 150 mV VRUN Run Threshold RUN Rising l 1.55 1.8 V Run Hysteresis RUN Falling 0.13 V RUN Pin Leakage RUN = 12V 0 2 µA VINTVCC Internal VCC Voltage 5.5V < VIN < 15V 4.8 5 5.4 V INTVCC Load Regulation ILOAD = 0mA to 20mA 0.3 % OV Output Overvoltage PGOOD Upper PGFB Rising 0.620 0.645 0.680 V Threshold UV Output Undervoltage PGOOD Lower PGFB Falling 0.520 0.555 0.590 V Threshold PGOOD Hysteresis PGFB Returning 10 mV PGOOD Pull-Down Resistance 1mA Load 200 Ω PGOOD Leakage Current PGOOD = 5V 1 µA VMODE/SYNC MODE/SYNC Threshold MODE VIL(MAX) 0.4 V MODE VIH(MIN) 4.3 V SYNC VIH(MIN) 2.5 V SYNC VIL(MAX) 0.4 V MODE/SYNC Pin Current MODE = 5V 9.5 µA fOSC Switching Frequency RT = 36.1k l 0.92 1 1.06 MHz VOUT Pin Resistance to Ground 600 kΩ VINOV VIN Overvoltage Lockout VIN Rising 17.5 V VIN Falling 16 V IQ Input DC Supply Current (Note 3) Discontinuous Mode = 0, RT = 36.1k 700 1100 µA Shutdown Run = 0 0 1.5 µA 3600fd 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
elecTrical characTerisTics The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C (Note 2). VIN = 12V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN VIN Supply Range 4 15 V ISET ISET Reference Current 49.5 50 50.5 µA l 49.3 50 51 µA ISET Line Regulation l 0.02 0.05 %/V ISET DROP_OUT Voltage ISET > 45µA, VIN – VSET 340 mV ISET Load Regulation IOUT = 0 to 1.5A 0.25 µA Error Amp Input Offset (Note 4) –3 3 mV Error Amp Load Regulation l 0.05 0.1 % Minimum VOUT Voltage VISET = 0, ROUT = 0 10 mV gm(EA) Error Amplifier Transconductance 0.63 0.9 mS tON(MIN) Minimum On-Time 30 ns tOFF(MIN) Minimum Off-Time 130 ns ILIM Current Limit l 1.6 2 2.4 A Negative Current Limit –0.9 A RTOP Top Power NMOS On-Resistance 200 mΩ RBOTTOM Bottom Power NMOS On-Resistance 100 mΩ VUVLO INTVCC Undervoltage Lockout Threshold INTVCC Rising 3.45 3.7 V UVLO Hysteresis INTVCC Falling 150 mV VRUN Run Threshold RUN Rising l 1.55 1.8 V Run Hysteresis RUN Falling 0.13 V RUN Pin Leakage RUN = 12V 0 2 µA VINTVCC Internal VCC Voltage 5.5V < VIN < 15V 4.8 5 5.4 V INTVCC Load Regulation ILOAD = 0mA to 20mA 0.3 % OV Output Overvoltage PGOOD Upper PGFB Rising 0.620 0.645 0.680 V Threshold UV Output Undervoltage PGOOD Lower PGFB Falling 0.520 0.555 0.590 V Threshold PGOOD Hysteresis PGFB Returning 10 mV PGOOD Pull-Down Resistance 1mA Load 200 Ω PGOOD Leakage Current PGOOD = 5V 1 µA VMODE/SYNC MODE/SYNC Threshold MODE VIL(MAX) 0.4 V MODE VIH(MIN) 4.3 V SYNC VIH(MIN) 2.5 V SYNC VIL(MAX) 0.4 V MODE/SYNC Pin Current MODE = 5V 9.5 µA fOSC Switching Frequency RT = 36.1k l 0.92 1 1.06 MHz VOUT Pin Resistance to Ground 600 kΩ VINOV VIN Overvoltage Lockout VIN Rising 17.5 V VIN Falling 16 V IQ Input DC Supply Current (Note 3) Discontinuous Mode = 0, RT = 36.1k 700 1100 µA Shutdown Run = 0 0 1.5 µA 3600fd 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts