Datasheet LTC3522 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | Synchronous 400mA Buck-Boost and 200mA Buck Converters |
| Pages / Page | 20 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. … |
| File Format / Size | PDF / 284 Kb |
| Document Language | English |
ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). ORDER INFORMATION. LEAD FREE FINISH. TAPE AND REEL. PART MARKING
Model Line for this Datasheet
Text Version of Document
LTC3522
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
PV TOP VIEW IN1, PVIN2 Voltage .. –0.3V to 6V SW1A, SW1B, SW2 Voltage IN2 SHDN2 PV SW2 PGND1 DC .. –0.3V to 6V 16 15 14 13 Pulsed < 100ns ... –1V to 7V FB2 1 12 VOUT1 Voltage, All Other Pins ... –0.3V to 6V PWM 2 11 SW1A 17 GND 3 10 SW1B Operating Temperature Range (Note 2) ... –40°C to 85°C PGOOD2 4 9 PGND2 Maximum Junction Temperature (Note 5) .. 125°C 5 6 7 8 Storage Temperature Range ... –65°C to 125°C FB1 IN1 PV SHDN1 PGOOD1 UD PACKAGE 16-LEAD (3mm × 3mm) PLASTIC QFN TJMAX = 125°C, θJA = 68°C/W EXPOSED PAD (PIN 17) IS GND AND MUST BE SOLDERED TO PCB GROUND
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3522EUD#PBF LTC3522EUD#TRPBF LCRQ 16-Lead (3mm × 3mm) Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The
●
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. PVIN1 = PVIN2 = 3.6V, VOUT1 = 3.3V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Voltage ● 2.4 5.5 V Quiescent Current—Shutdown VSHDN1 = VSHDN2 = 0V ● 0.01 1 μA Burst Mode Quiescent Current VFB1 = 1.1V, VFB2 = 0.66V, VPWM = 0V 25 μA Oscillator Frequency ● 0.8 1.07 1.33 MHz SHDN1, SHDN2, PWM Input High Voltage 1.4 V SHDN1, SHDN2, PWM Input Low Voltage 0.4 V Power Good Outputs Low Voltage IPGOOD1 = IPGOOD2 = 1mA 0.02 0.1 V Power Good Outputs Leakage VPGOOD1 = VPGOOD2 = 5.5V 0.1 10 μA
Buck Converter
PMOS Switch Resistance 0.41 Ω NMOS Switch Resistance 0.34 Ω NMOS Switch Leakage VSW2 = 5V, PVIN1 = PVIN2 = 5V 0.1 5 μA PMOS Switch Leakage VSW2 = 0V, PVIN1 = PVIN2 = 5V 0.1 10 μA Feedback Voltage (Note 4) ● 0.582 0.594 0.606 V Feedback Input Current 1 50 nA Peak Current Limit (Note 3) 300 400 mA 3522fa 2
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1)
PV TOP VIEW IN1, PVIN2 Voltage .. –0.3V to 6V SW1A, SW1B, SW2 Voltage IN2 SHDN2 PV SW2 PGND1 DC .. –0.3V to 6V 16 15 14 13 Pulsed < 100ns ... –1V to 7V FB2 1 12 VOUT1 Voltage, All Other Pins ... –0.3V to 6V PWM 2 11 SW1A 17 GND 3 10 SW1B Operating Temperature Range (Note 2) ... –40°C to 85°C PGOOD2 4 9 PGND2 Maximum Junction Temperature (Note 5) .. 125°C 5 6 7 8 Storage Temperature Range ... –65°C to 125°C FB1 IN1 PV SHDN1 PGOOD1 UD PACKAGE 16-LEAD (3mm × 3mm) PLASTIC QFN TJMAX = 125°C, θJA = 68°C/W EXPOSED PAD (PIN 17) IS GND AND MUST BE SOLDERED TO PCB GROUND
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3522EUD#PBF LTC3522EUD#TRPBF LCRQ 16-Lead (3mm × 3mm) Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The
●
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. PVIN1 = PVIN2 = 3.6V, VOUT1 = 3.3V unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Voltage ● 2.4 5.5 V Quiescent Current—Shutdown VSHDN1 = VSHDN2 = 0V ● 0.01 1 μA Burst Mode Quiescent Current VFB1 = 1.1V, VFB2 = 0.66V, VPWM = 0V 25 μA Oscillator Frequency ● 0.8 1.07 1.33 MHz SHDN1, SHDN2, PWM Input High Voltage 1.4 V SHDN1, SHDN2, PWM Input Low Voltage 0.4 V Power Good Outputs Low Voltage IPGOOD1 = IPGOOD2 = 1mA 0.02 0.1 V Power Good Outputs Leakage VPGOOD1 = VPGOOD2 = 5.5V 0.1 10 μA
Buck Converter
PMOS Switch Resistance 0.41 Ω NMOS Switch Resistance 0.34 Ω NMOS Switch Leakage VSW2 = 5V, PVIN1 = PVIN2 = 5V 0.1 5 μA PMOS Switch Leakage VSW2 = 0V, PVIN1 = PVIN2 = 5V 0.1 10 μA Feedback Voltage (Note 4) ● 0.582 0.594 0.606 V Feedback Input Current 1 50 nA Peak Current Limit (Note 3) 300 400 mA 3522fa 2
