S-8521A25MC-AXK-T2 Seiko Instruments, S-8521A25MC-AXK-T2 Datasheet - Page 22

• Manufacturer Part Number: S-8521A25MC-AXK-T2
• Description: DC/DC Switching Regulators 2.5V 60uA Step-Down
• Manufacturer: Seiko Instruments

Specifications of S-8521A25MC-AXK-T2

• Output Voltage: 2.5 V
• Output Current: 120 mA
• Input Voltage: 2.5 V to 10 V
• Duty Cycle (max): 100 %
• Switching Frequency: 180 KHz
• Mounting Style: SMD/SMT
• Package / Case: SOT-23-5
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

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STEP-DOWN, PWM CONTROL or PWM / PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8520/8521 Series
Precautions
• Mount the external capacitors, the diode and the coil as close as possible to the IC, and secure grounding at a
• Characteristics ripple voltage and spike noise occur in IC containing switching regulators. Moreover, rush current
• The overload protection circuit of this IC performs the protective function by detecting the maximum duty time
• Make sure that dissipation of the switching transistor (especially at a high temperature) does not exceed the
• Do not apply an electrostatic discharge to this IC that exceeds the performance ratings of the built-in electrostatic
• SII claims no responsibility for any and all disputes arising out of or in connection with any infringement by
single location.
flows at the time of a power supply injection. Because these largely depend on the coil, the capacitor and
impedance of power supply used, fully check them using an actually mounted model.
(100 %). In choosing the components, make sure that over currents generated by short-circuits in the load, etc.,
will not surpass the allowable dissipation of the switching transistor and inductor.
allowable dissipation of the package.
protection circuit.
products including this IC of patents owned by a third party.
Seiko Instruments Inc.
Rev.9.0
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