Datasheet LTC3729L-6 (Analog Devices) - 2
| Fabricante | Analog Devices |
| Descripción | PolyPhase, Synchronous Step-Down Switching Regulator |
| Páginas / Página | 28 / 2 — ABSOLUTE AXI U. RATI GS (Note 1). PACKAGE/ORDER I FOR ATIO. ELECTRICAL … |
| Formato / tamaño de archivo | PDF / 356 Kb |
| Idioma del documento | Inglés |
ABSOLUTE AXI U. RATI GS (Note 1). PACKAGE/ORDER I FOR ATIO. ELECTRICAL CHARACTERISTICS The
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LTC3729L-6
W W W U ABSOLUTE AXI U RATI GS (Note 1)
Input Supply Voltage (VIN)...30V to –0.3V ITH Voltage ..2.7V to –0.3V Topside Driver Voltages (BOOST1,2) ...36V to – 0.3V Peak Output Current <1µs (TGL1,2, BG1,2)... 3A Switch Voltage (SW1, 2) ...30V to – 5 V INTVCC RMS Output Current .. 40mA SENSE1+, SENSE2 +, SENSE1–, Operating Ambient Temperature Range SENSE2 – Voltages .. (1.1)INTVCC to –0.3V LTC3729LEUH-6 (Note 6) ... – 40°C to 85°C EAIN, V + – OS , VOS , EXTVCC, INTVCC, Junction Temperature (Note 2) ... 125°C RUN/SS, PGOOD Voltages ...7V to – 0.3V Storage Temperature Range ... – 65°C to 125°C Boosted Driver Voltage (BOOST-SW) .. 7V to – 0.3V Reflow Peak Body Temperature .. 240°C PLLFLTR, PLLIN, CLKOUT, PHASMD, VDIFFOUT Voltages .. INTVCC to –0.3V
U W U PACKAGE/ORDER I FOR ATIO
TOP VIEW ORDER PART – + NUMBER NC SENSE1 SENSE1 NC RUN/SS CLKOUT TG1 SW1 LTC3729LEUH-6 32 31 30 29 28 27 26 25 EAIN 1 24 BOOST1 PLLFLTR 2 23 VIN PLLIN 3 22 BG1 PHASMD 4 21 EXTVCC I 5 20 TH INTVCC SGND 6 19 PGND V 7 18 DIFFOUT BG2 V – 8 17 OS BOOST2 UH PART 9 10 11 12 13 14 15 16 + – + MARKING OS NC NC V TG2 SW2 PGOOD 3729L6 SENSE2 SENSE2 UH PACKAGE 32-LEAD (5mm × 5mm) PLASTIC QFN EXPOSED PAD IS SIGNAL GROUND (MUST BE SOLDERED TO PCB) TJMAX = 125°C, θJA = 34°C/W Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 15V, VRUN/SS = 5V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Main Control Loop
VEAIN Regulated Feedback Voltage (Note 3); ITH Voltage = 1.2V ● 0.594 0.600 0.606 V V – SENSEMAX Maximum Current Sense Threshold VSENSE = 5V ● 62 75 88 mV 65 75 85 mV IINEAIN Feedback Current (Note 3) – 5 – 50 nA sn3729l6 3729l6fs 2
W W W U ABSOLUTE AXI U RATI GS (Note 1)
Input Supply Voltage (VIN)...30V to –0.3V ITH Voltage ..2.7V to –0.3V Topside Driver Voltages (BOOST1,2) ...36V to – 0.3V Peak Output Current <1µs (TGL1,2, BG1,2)... 3A Switch Voltage (SW1, 2) ...30V to – 5 V INTVCC RMS Output Current .. 40mA SENSE1+, SENSE2 +, SENSE1–, Operating Ambient Temperature Range SENSE2 – Voltages .. (1.1)INTVCC to –0.3V LTC3729LEUH-6 (Note 6) ... – 40°C to 85°C EAIN, V + – OS , VOS , EXTVCC, INTVCC, Junction Temperature (Note 2) ... 125°C RUN/SS, PGOOD Voltages ...7V to – 0.3V Storage Temperature Range ... – 65°C to 125°C Boosted Driver Voltage (BOOST-SW) .. 7V to – 0.3V Reflow Peak Body Temperature .. 240°C PLLFLTR, PLLIN, CLKOUT, PHASMD, VDIFFOUT Voltages .. INTVCC to –0.3V
U W U PACKAGE/ORDER I FOR ATIO
TOP VIEW ORDER PART – + NUMBER NC SENSE1 SENSE1 NC RUN/SS CLKOUT TG1 SW1 LTC3729LEUH-6 32 31 30 29 28 27 26 25 EAIN 1 24 BOOST1 PLLFLTR 2 23 VIN PLLIN 3 22 BG1 PHASMD 4 21 EXTVCC I 5 20 TH INTVCC SGND 6 19 PGND V 7 18 DIFFOUT BG2 V – 8 17 OS BOOST2 UH PART 9 10 11 12 13 14 15 16 + – + MARKING OS NC NC V TG2 SW2 PGOOD 3729L6 SENSE2 SENSE2 UH PACKAGE 32-LEAD (5mm × 5mm) PLASTIC QFN EXPOSED PAD IS SIGNAL GROUND (MUST BE SOLDERED TO PCB) TJMAX = 125°C, θJA = 34°C/W Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 15V, VRUN/SS = 5V unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Main Control Loop
VEAIN Regulated Feedback Voltage (Note 3); ITH Voltage = 1.2V ● 0.594 0.600 0.606 V V – SENSEMAX Maximum Current Sense Threshold VSENSE = 5V ● 62 75 88 mV 65 75 85 mV IINEAIN Feedback Current (Note 3) – 5 – 50 nA sn3729l6 3729l6fs 2