ADP1621ARMZ-R7 Analog Devices Inc, ADP1621ARMZ-R7 Datasheet - Page 19

• 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

Given the minimum on time of the ADP1621, pulse-skipping
modulation is also a requirement to maintain output voltage
regulation with light loads. During the short switching periods
of pulse-skipping modulation, the MOSFET is turned on for the
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Rev. A | Page 19 of 32
Components
Capacitors
Diodes
Inductors
Diodes
Diodes, MOSFETs
Capacitors, inductors
Diodes, MOSFETs
Capacitors
Capacitors
Inductors
Capacitors, inductors
Inductors
Capacitors
Diodes, MOSFETs, resistors, capacitors
minimum on time each cycle, storing just enough energy in the
inductor to charge the output capacitor. During the long period
when the MOSFET is off, no current flows through the inductor,
and the light load current is supplied by the output capacitor.
ADP1621