Datasheet LTM4691 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | Low VIN, High Efficiency, Dual 2A Step-Down DC/DC µModule Regulator |
| Pages / Page | 22 / 3 — ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). (See Pin … |
| File Format / Size | PDF / 1.2 Mb |
| Document Language | English |
ABSOLUTE MAXIMUM RATINGS. PIN CONFIGURATION. (Note 1). (See Pin Functions, Pin Configuration T. able). ORDER INFORMATION
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ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) (See Pin Functions, Pin Configuration T able)
VIN ... –0.3V to 4V VOUT1, VOUT2 ... –0.3V to 2.5V TOP VIEW PGOOD, RUN1, RUN2, MODE/SYNC, SGND2 FB2 FB1 SGND1 A FB1, FB2 ... –0.3V to 4V MODE/ PGOOD RUN2 RUN1 SYNC Operating Junction Temperature B VIN VIN (Note 2) ... –40°C to 125°C C Storage Temperature Range .. –55°C to 125°C GND D Peak Solder Reflow Body Temperature ...260°C E VOUT2 V F OUT1 1 2 3 4 LGA PACKAGE 24-LEAD (3mm × 4mm × 1.18mm) LGA PACKAGE TJMAX = 125°C, θJA = 40.4°C/W, θJCtop = 47.9°C/W, θJCbot = 8.5°C/W WEIGHT = 0.042gram NOTES: 1. θ VALUES ARE DETERMINED BY SIMULATION PER JESD-51 CONDITIONS. 2. θJA VALUE IS OBTAINED WITH DEMO BOARD. 3. REFER TO PAGE 17 FOR LAB MEASUREMENT AND DE-RATING INFORMATION.
ORDER INFORMATION PART MARKING* PACKAGE MSL TEMPERATURE RANGE PART NUMBER PAD OR BALL FINISH DEVICE FINISH CODE TYPE RATING (SEE NOTE 2)
LTM4691EV#PBF Au (RoHS) 4691V –40°C to 125°C e4 LGA 3 LTM4691IV#PBF Au (RoHS) 4691V –40°C to 125°C • Contact the factory for parts specified with wider operating temperature • Recommended LGA and BGA PCB Assembly and Manufacturing ranges. *Pad or ball finish code is per IPC/JEDEC J-STD-609. Procedures • LGA Package and Tray Drawings
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C (Note 2), VIN = 3.3V, per the typical application. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input DC Voltage l 2.25 3.6 V VOUT1,2(RANGE) Output Voltage Range VIN = 2.25V to 3.6V l 0.5 2.5 V VOUT1,2(DC) Output Voltage, Total Variation with MODE/SYNC = Float l 1.477 1.50 1.523 V Line and Load VIN = 2.5V to 3.6V IOUT = 0A to 2A, VIN = 2.5V VIN_UVLO VIN Undervoltage Lockout VIN Rising 2.05 2.15 2.25 V VIN_UVLO_HYS VIN Undervoltage Lockout Hysteresis 150 mV VRUN1,2 RUN Pin On-Threshold VRUN Rising 0.375 0.4 0.425 V VRUN1HYS/VRUN2HYS RUN Pin Hysteresis 50 mV Rev. 0 For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information VIN to VOUT Step-Down Ratios Output Voltage Programming Input Decoupling Capacitors Output Decoupling Capacitors Mode Selection Operating Frequency and External Synchronization Power GOOD Output Overvoltage Protection Output Voltage Soft-Start Dropout Operation Output Short-Circuit Protection and Recovery Load Sharing Using the Precision RUN Threshold Thermal Considerations and Output Current Derating Safety Considerations Layout Checklist/Example Applications Information Typical Applications Pin Configuration Table LTM4691 Component LGA Pinout Package Description Package Photo Related Parts
ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) (See Pin Functions, Pin Configuration T able)
VIN ... –0.3V to 4V VOUT1, VOUT2 ... –0.3V to 2.5V TOP VIEW PGOOD, RUN1, RUN2, MODE/SYNC, SGND2 FB2 FB1 SGND1 A FB1, FB2 ... –0.3V to 4V MODE/ PGOOD RUN2 RUN1 SYNC Operating Junction Temperature B VIN VIN (Note 2) ... –40°C to 125°C C Storage Temperature Range .. –55°C to 125°C GND D Peak Solder Reflow Body Temperature ...260°C E VOUT2 V F OUT1 1 2 3 4 LGA PACKAGE 24-LEAD (3mm × 4mm × 1.18mm) LGA PACKAGE TJMAX = 125°C, θJA = 40.4°C/W, θJCtop = 47.9°C/W, θJCbot = 8.5°C/W WEIGHT = 0.042gram NOTES: 1. θ VALUES ARE DETERMINED BY SIMULATION PER JESD-51 CONDITIONS. 2. θJA VALUE IS OBTAINED WITH DEMO BOARD. 3. REFER TO PAGE 17 FOR LAB MEASUREMENT AND DE-RATING INFORMATION.
ORDER INFORMATION PART MARKING* PACKAGE MSL TEMPERATURE RANGE PART NUMBER PAD OR BALL FINISH DEVICE FINISH CODE TYPE RATING (SEE NOTE 2)
LTM4691EV#PBF Au (RoHS) 4691V –40°C to 125°C e4 LGA 3 LTM4691IV#PBF Au (RoHS) 4691V –40°C to 125°C • Contact the factory for parts specified with wider operating temperature • Recommended LGA and BGA PCB Assembly and Manufacturing ranges. *Pad or ball finish code is per IPC/JEDEC J-STD-609. Procedures • LGA Package and Tray Drawings
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C (Note 2), VIN = 3.3V, per the typical application. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input DC Voltage l 2.25 3.6 V VOUT1,2(RANGE) Output Voltage Range VIN = 2.25V to 3.6V l 0.5 2.5 V VOUT1,2(DC) Output Voltage, Total Variation with MODE/SYNC = Float l 1.477 1.50 1.523 V Line and Load VIN = 2.5V to 3.6V IOUT = 0A to 2A, VIN = 2.5V VIN_UVLO VIN Undervoltage Lockout VIN Rising 2.05 2.15 2.25 V VIN_UVLO_HYS VIN Undervoltage Lockout Hysteresis 150 mV VRUN1,2 RUN Pin On-Threshold VRUN Rising 0.375 0.4 0.425 V VRUN1HYS/VRUN2HYS RUN Pin Hysteresis 50 mV Rev. 0 For more information www.analog.com 3 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information VIN to VOUT Step-Down Ratios Output Voltage Programming Input Decoupling Capacitors Output Decoupling Capacitors Mode Selection Operating Frequency and External Synchronization Power GOOD Output Overvoltage Protection Output Voltage Soft-Start Dropout Operation Output Short-Circuit Protection and Recovery Load Sharing Using the Precision RUN Threshold Thermal Considerations and Output Current Derating Safety Considerations Layout Checklist/Example Applications Information Typical Applications Pin Configuration Table LTM4691 Component LGA Pinout Package Description Package Photo Related Parts
