ADP1621ARMZ-R7 Analog Devices Inc, ADP1621ARMZ-R7 Datasheet - Page 2

• Manufacturer Part Number: ADP1621ARMZ-R7
• Description: IC CTRLR DC/DC PWM STEPUP 10MSOP
• Manufacturer: Analog Devices Inc
• Type: Step-Up (Boost)r

Specifications of ADP1621ARMZ-R7

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Current - Output: 1A
• Frequency - Switching: 100kHz ~ 1.5MHz
• Voltage - Input: 2.9 ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Primary Input Voltage: 5.5V
• No. Of Outputs: 1
• Output Current: 1A
• No. Of Pins: 10
• Operating Temperature Range: -40°C To +125°C
• Msl: MSL 1 - Unlimited
• Frequency Max: 1.5MHz
• Termination Type: SMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: ADP1621-EVALZ - BOARD EVALUATION FOR ADP1621
• Voltage - Output: -
• Power - Output: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: ADP1621ARMZ-R7; ADP1621ARMZ-R7TR

ADP1621
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Typical Application Circuit ............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 5
Simplified Block Diagram ............................................................... 6
Pin Configuration and Function Descriptions............................. 7
Typical Performance Characteristics ............................................. 8
Theory of Operation ...................................................................... 12
Application Information: Boost Converter................................. 14
REVISION HISTORY
12/06—Rev. 0 to Rev. A
Changes to Table 1............................................................................ 3
Changes to Table 2............................................................................ 5
Added Table 3.................................................................................... 5
Changes to Table 5.......................................................................... 19
Changes to Ordering Guide .......................................................... 31
7/06—Revision 0: Initial Version
Thermal Resistance ...................................................................... 5
ESD Caution.................................................................................. 5
Control Loop............................................................................... 12
Current-Sense Configurations.................................................. 12
Current Limit .............................................................................. 13
Undervoltage Lockout ............................................................... 13
Shutdown..................................................................................... 13
Soft Start ...................................................................................... 13
Internal Shunt Regulators.......................................................... 13
Setting the Oscillator Frequency and Synchronization
Frequency .................................................................................... 13
Duty Cycle ................................................................................... 14
Rev. A | Page 2 of 32
Layout Considerations................................................................... 20
Efficiency Considerations ............................................................. 21
Examples of Application Circuits................................................. 22
Related Parts.................................................................................... 30
Outline Dimensions ....................................................................... 31
Setting the Output Voltage........................................................ 14
Inductor Current Ripple............................................................ 14
Inductor Selection ...................................................................... 14
Input Capacitor Selection.......................................................... 15
Output Capacitor Selection....................................................... 15
Diode Selection........................................................................... 15
MOSFET Selection..................................................................... 16
Loop Compensation .................................................................. 16
Slope Compensation .................................................................. 17
Current Limit.............................................................................. 18
Light Load Operation ................................................................ 18
Recommended Component Manufacturers........................... 19
Standard Boost Converter—Design Example ........................ 22
Bootstrapped Boost Converter................................................. 23
SEPIC Converter Circuit ........................................................... 27
Low Voltage Power-Input Circuit ............................................ 27
LED Driver Application Circuits ............................................. 28
Ordering Guide .......................................................................... 31