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Product Detailed Parameters
- Description：IC REG BUCK ADJ 500MA 12MLPQ
- Series：-
- Mfr：ams-OSRAM USA INC.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：3.6V
- Voltage - Input (Max)：32V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：32V
- Current - Output：500mA
- Frequency - Switching：-
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：12-VQFN Exposed Pad
- Supplier Device Package：12-MLPQ (4x4)
- Grade：-
- Qualification：-
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Overview
The AS7620A-BQFT-500 is a high-efficiency, hysteretic step-down DC-DC converter manufactured by ams OSRAM. It operates in asynchronous mode and supports input voltages ranging from 3.6V to 32V. The device provides a fixed output voltage of 3.3V with a maximum output current of 500mA. Key electrical characteristics include a typical quiescent current of 30µA at idle and 1µA in shutdown mode. It features pin-strapped current limiting, output short-circuit protection, and thermal shutdown. The component is housed in a 12-VQFN package with exposed pad and operates within a temperature range of -40°C to +85°C.
Feature Summary
- Hysteretic control architecture for rapid transient response
- Pin-strapped current limit minimizes external inductor size
- Ultra-low power consumption extends battery life
- Integrated thermal shutdown and short-circuit protection
Applications
- Industrial systems requiring 24V operation
- Medical equipment demanding high up-time
- Battery-backed critical applications
- Soft power fail behavior circuits
Procurement Notes
Verify the specific suffix against official datasheets to confirm output voltage and current ratings. Confirm package type and lead-free status. Check for End-of-Life notifications as availability may be restricted. Ensure compatibility with required input voltage ranges before integration.
Selection Notes
Select this component for applications requiring high efficiency and low standby current. The hysteretic control allows for smaller passive components compared to PWM converters. Verify that the fixed 3.3V output meets system requirements. Consider the 32V maximum input rating for industrial environments.
Part Context
This part belongs to the AS7620 series of ultra-low ripple step-down DC/DC converters. Designed for high-voltage applications, it offers up to 90% efficiency. The series is optimized for industrial and medical sectors where reliability and wide input voltage ranges are essential.
Replacement Considerations
Consult manufacturer cross-reference tools for compatible alternatives. Verify functional equivalence regarding hysteretic control and input voltage range. Ensure pinout compatibility if direct replacement is intended.
