Datasheet LTC3670 (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | Monolithic 400mA Buck Regulator with Dual 150mA LDOs in 3mm × 2mm DFN |
| Pages / Page | 14 / 2 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Notes 1, 2, 3). ORDER … |
| Revision | A |
| File Format / Size | PDF / 401 Kb |
| Document Language | English |
ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Notes 1, 2, 3). ORDER INFORMATION LEAD FREE FINISH. TAPE AND REEL. PART MARKING
Model Line for this Datasheet
Text Version of Document
LTC3670
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2, 3)
VIN, ENBUCK, ENLDO1, ENLDO2, TOP VIEW PGOOD .. –0.3V to 6V SW, BUCKFB, LDO1_FB, LDO2_FB, SW 1 12 VIN GND 2 11 LDO2 LDO1, LDO2 ...–0.3V to (VIN + 0.3V) ENLD01 3 10 LDO1 I 13 SW ...600mA ENLD02 4 9 LDO1_FB ILDO1, ILDO2 ..250mA ENBUCK 5 8 LDO2_FB I BUCKFB 6 7 PGOOD PGOOD ..40mA Junction Temperature ... 125°C DDB PACKAGE 12-LEAD (3mm × 2mm) PLASTIC DFN Operating Temperature Range.. –40°C to 85°C TJMAX = 125°C, θJA = 76°C/W, θJC = 13.5°C/W Storage Temperature Range ... –65°C to 125°C EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3670EDDB#PBF LTC3670EDDB#TRPBF LDBY 12-Lead (3mm × 2mm) Plastic DFN –40°C to 85°C Consult ADI Marketing for parts specified with wider operating temperature ranges. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Voltage Range l 2.5 5.5 V VUVLO Undervoltage Lockout Threshold VIN Rising 2.2 2.45 V Undervoltage Lockout Hysteresis 18 100 mV IQ VIN Quiescent Current, No Load (Note 4) All Outputs Enabled VBUCKFB = 0.9V 70 110 µA Buck Enabled Only VBUCKFB = 0.9V 38 60 µA Buck Enabled Only, in Dropout VBUCKFB = 0V 700 1100 µA One LDO Enabled Only 22 35 µA Shutdown VENBUCK = VENLDO1 = VENLDO2 = 0V 1 µA ENBUCK, ENLDO1, ENLDO2 Pin Thresholds VIL Logic Low Voltage l 0.4 V VIH Logic High Voltage l 1.2 V ENBUCK, ENLDO1, ENLDO2 Pin Pull-Down 4 MΩ Resistance RPGOOD PGOOD Pin Logic Low Output Resistance 30 Ω PGOOD Pin Hi-Z Leakage VPGOOD = 6V 1 µA PGOOD Threshold on Feedback Voltages of (Note 5) 92 % Enabled Regulators Rev A 2 For more information www.analog.com Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Typical Application Related Parts
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2, 3)
VIN, ENBUCK, ENLDO1, ENLDO2, TOP VIEW PGOOD .. –0.3V to 6V SW, BUCKFB, LDO1_FB, LDO2_FB, SW 1 12 VIN GND 2 11 LDO2 LDO1, LDO2 ...–0.3V to (VIN + 0.3V) ENLD01 3 10 LDO1 I 13 SW ...600mA ENLD02 4 9 LDO1_FB ILDO1, ILDO2 ..250mA ENBUCK 5 8 LDO2_FB I BUCKFB 6 7 PGOOD PGOOD ..40mA Junction Temperature ... 125°C DDB PACKAGE 12-LEAD (3mm × 2mm) PLASTIC DFN Operating Temperature Range.. –40°C to 85°C TJMAX = 125°C, θJA = 76°C/W, θJC = 13.5°C/W Storage Temperature Range ... –65°C to 125°C EXPOSED PAD (PIN 13) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3670EDDB#PBF LTC3670EDDB#TRPBF LDBY 12-Lead (3mm × 2mm) Plastic DFN –40°C to 85°C Consult ADI Marketing for parts specified with wider operating temperature ranges. Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Voltage Range l 2.5 5.5 V VUVLO Undervoltage Lockout Threshold VIN Rising 2.2 2.45 V Undervoltage Lockout Hysteresis 18 100 mV IQ VIN Quiescent Current, No Load (Note 4) All Outputs Enabled VBUCKFB = 0.9V 70 110 µA Buck Enabled Only VBUCKFB = 0.9V 38 60 µA Buck Enabled Only, in Dropout VBUCKFB = 0V 700 1100 µA One LDO Enabled Only 22 35 µA Shutdown VENBUCK = VENLDO1 = VENLDO2 = 0V 1 µA ENBUCK, ENLDO1, ENLDO2 Pin Thresholds VIL Logic Low Voltage l 0.4 V VIH Logic High Voltage l 1.2 V ENBUCK, ENLDO1, ENLDO2 Pin Pull-Down 4 MΩ Resistance RPGOOD PGOOD Pin Logic Low Output Resistance 30 Ω PGOOD Pin Hi-Z Leakage VPGOOD = 6V 1 µA PGOOD Threshold on Feedback Voltages of (Note 5) 92 % Enabled Regulators Rev A 2 For more information www.analog.com Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Typical Application Related Parts
