Datasheet LTC3822-1 (Analog Devices) - 2

LTC3822-1
ABSOLUTE MAXIMUM RATINGS (Note 1)
Input Supply Voltage (VIN) .. –0.3V to 4.5V Storage Ambient Temperature Range BOOST Voltage .. –0.3V to 10V DD ... –65°C to 125°C PLLLPF, RUN, IPRG, SYNC/MODE, GN ... –65°C to 150°C TRACK/SS Voltages ...–0.3V to (VIN + 0.3V) Junction Temperature (Note 3) ... 125°C VFB, ITH Voltages ... –0.3V to 2.4V Lead Temperature (Soldering, 10 sec) SW Voltage .. –2V to VIN + 1V GN Only .. 300°C Operating Temperature Range (Note 2) ... –40°C to 85°C
PACKAGE/ORDER INFORMATION
TOP VIEW TOP VIEW GND 1 16 SW PLLLPF 1 12 SW PLLLPF 2 15 SENSE– SYNC/MODE 2 11 VIN SYNC/MODE 3 14 VIN TRACK/SS 3 10 BOOST 13 PGOOD 4 13 BOOST V 4 9 TG FB TRACK/SS 5 12 TG I 5 8 BG TH V 6 11 BG RUN 6 7 IPRG FB I 7 10 TH IPRG DD PACKAGE 12-LEAD (3mm × 3mm) PLASTIC DFN RUN 8 9 GND TJMAX = 125°C, θJA = 43°C/W GN PACKAGE EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB 16-LEAD PLASTIC SSOP TJMAX = 125°C, θJA = 110°C/W ORDER PART NUMBER DD PART MARKING ORDER PART NUMBER GN PART MARKING LTC3822EDD-1 LCMS LTC3822EGN-1 38221
Order Options
Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The
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denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 3.3V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS Main Control Loops
VIN Operating Voltage Range 2.75 3.3 4.5 V Input DC Supply Current (Note 4) Normal Operation 360 525 µA Sleep Mode 105 150 µA Shutdown RUN = 0 7.5 20 µA UVLO VIN = UVLO Threshold – 200mV 10 20 Undervoltage Lockout Threshold VIN Falling ● 1.95 2.25 2.55 V VIN Rising ● 2.15 2.45 2.75 V Shutdown Threshold Of RUN Pin 0.7 1.1 1.4 V Regulated Feedback Voltage (Note 5) ● 0.594 0.6 0.606 V Output Voltage Line Regulation 2.75V < VIN < 4.5V (Note 5) 0.025 0.1 %/V 38221f 2