Datasheet LTC3736-1 (Analog Devices) - 2

LTC3736-1
W W W U ABSOLUTE AXI U RATI GS (Note 1)
Input Supply Voltage (VIN) .. – 0.3V to 10V TG1, TG2, BG1, BG2 Peak Output Current (<10µs) ... 1A FREQ, RUN/SS, SSDIS, Operating Temperature Range (Note 2) ... –40°C to 85°C TRACK, SENSE1+, SENSE2+, Storage Temperature Range .. –65°C to 125°C IPRG1, IPRG2 Voltages ... – 0.3V to (VIN + 0.3V) Junction Temperature (Note 3) .. 125°C VFB1, VFB2, ITH1, ITH2 Voltages .. – 0.3V to 2.4V Lead Temperature (Soldering, 10 sec) SW1, SW2 Voltages .. –2V to VIN + 1V or 10V Max (LTC3736EGN-1) .. 300°C PGOOD ... – 0.3V to 10V
U W U PACKAGE/ORDER I FOR ATIO
TOP VIEW ORDER PART ORDER PART + TOP VIEW NUMBER NUMBER SW1 1 24 SENSE1+ FB1V IPRG1 SW1 SENSE1 PGND BG1 IPRG1 2 23 PGND LTC3736EUF-1 LTC3736EGN-1 24 23 22 21 20 19 V 3 22 FB1 BG1 ITH1 1 18 SSDIS I 4 21 TH1 SSDIS IPRG2 2 17 TG1 IPRG2 5 20 TG1 FREQ 3 16 PGND 25 FREQ 6 19 PGND SGND 4 15 TG2 SGND 7 18 TG2 VIN 5 14 RUN/SS TRACK 6 13 BG2 V 8 17 IN RUN/SS UF PART MARKING TRACK 9 16 BG2 7 8 9 10 11 12 + V 10 15 FB2 PGND FB2 3736-1 V I TH2 SW2 PGND I 11 14 TH2 SENSE2+ PGOOD SENSE2 PGOOD 12 13 SW2 UF PACKAGE 24-LEAD (4mm × 4mm) PLASTIC QFN GN PACKAGE T 24-LEAD PLASTIC SSOP JMAX = 125°C, θJA = 37°C/W EXPOSED PAD (PIN 25) IS PGND TJMAX = 125°C, θJA = 130°C/ W MUST BE SOLDERED TO PCB Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
●
denotes specifications that apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VIN = 4.2V unless otherwise specified. PARAMETER CONDITIONS MIN TYP MAX UNITS Main Control Loops
Input DC Supply Current (Note 4) Normal Mode 500 850 µA Shutdown RUN/SS = 0V 9 20 µA UVLO VIN < UVLO Threshold 3 10 µA Undervoltage Lockout Threshold VIN Falling ● 1.95 2.25 2.55 V VIN Rising ● 2.15 2.45 2.75 V Shutdown Threshold at RUN/SS 0.45 0.65 0.85 V Start-Up Current Source RUN/SS = 0V 0.5 0.7 1 µA Regulated Feedback Voltage 0°C to 85°C (Note 5) 0.591 0.6 0.609 V –40°C to 85°C ● 0.588 0.6 0.612 V Output Voltage Line Regulation 2.75V < VIN < 9.8V (Note 5) 0.05 0.2 mV/V 37361f 2