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Product Detailed Parameters
- Description：IC REG BUCK ADJ 350MA 10MSOP
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.5V
- Voltage - Input (Max)：6V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：5.5V
- Current - Output：350mA
- Frequency - Switching：1.4MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：10-MSOP
- Grade：-
- Qualification：-
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Overview
The EL7535IY is a synchronous, integrated FET step-down regulator manufactured by Renesas Electronics Corporation. It operates with an input voltage range from 2.5V to 6V and provides an adjustable output voltage from 0.8V to VIN. The device delivers a maximum output current of 350mA and features a typical switching frequency of 1.4MHz. It includes internal compensation, requiring only five external components for operation. Key protection features include short-circuit protection and over-temperature protection. The regulator supports PWM mode control and offers less than 1µA shut-down current. It is specified for operation over a temperature range of -40°C to +85°C.
Feature Summary
- Synchronous step-down topology with integrated power FETs
- Internal compensation simplifies external component count
- Low quiescent current in shutdown mode
- Integrated thermal and short-circuit protection
Applications
- PDA and Pocket PC Computers
- Cellular Phones
- Li-Ion Battery Powered Devices
- Portable Test Equipment
Procurement Notes
Verify the specific suffix (e.g., IY vs IYZ) against the required package type, as the base part number may correspond to different physical packages. Confirm RoHS compliance status, as some listings indicate non-compliance. Check current availability status, as this component may be discontinued or subject to limited supply constraints depending on the distributor. Ensure the ordering quantity matches the manufacturer's standard packaging requirements.
Selection Notes
Select this component when a compact, low-current buck converter is needed for battery-powered applications. The 350mA output limit suits portable devices rather than high-power loads. Consider the 1.4MHz switching frequency for balancing efficiency and external inductor size. Verify that the input voltage source falls within the 2.5V to 6V range. Evaluate PCB space constraints, as the MSOP package allows for small form factor designs.
Part Context
The EL7535 belongs to Renesas' family of synchronous DC-DC step-down regulators designed for portable electronics. It shares architectural similarities with other members like the EL7530 but differs in output current capabilities. The EL7535 series is characterized by its internal compensation and minimal external component requirement, targeting cost-sensitive and space-constrained mobile applications.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Renesas for recommended alternatives if this part is discontinued.
