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Product Detailed Parameters
- Description：IC REG QUAD BUCK/LNR 3MHZ 16TQFN
- Series：-
- Mfr：Renesas Electronics Corporation
- Package：Tape & Reel (TR),Cut Tape (CT)
- Topology：Step-Down (Buck) (2), Linear (LDO) (2)
- Number of Outputs：4
- Frequency - Switching：3MHz
- Voltage/Current - Output 1：0.8V ~ 5.5V, 800mA
- Voltage/Current - Output 2：0.8V ~ 5.5V, 800mA
- Voltage/Current - Output 3：3.3V, 350mA
- w/LED Driver：No
- w/Supervisor：No
- w/Sequencer：No
- Voltage - Supply：1.5V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：16-WQFN Exposed Pad
- Supplier Device Package：16-TQFN (4x4)
- Grade：-
- Qualification：-
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Overview
The ISL9305IRTAANLZ-T is a mini-PMIC integrating two 3MHz synchronous step-down converters and two low-input LDOs. It supports input voltages from 2.3V to 5.5V for DC/DC and 1.5V to 5.5V for LDOs. The device features dual 800mA buck regulators and dual general-purpose LDOs with I2C programmability. Output voltages are adjustable via I2C, offering 25mV steps for DC/DC and 50mV steps for LDOs. It operates in a 4mm x 4mm TQFN package.
Feature Summary
- Integrates dual high-efficiency 3MHz synchronous step-down converters and dual low-input LDOs
- Supports on-the-fly I2C programming for output voltage adjustment
- Features configurable skip mode or fixed PWM frequency operation
Applications
- Cellular phones
- Smart phones
- PDAs
- Portable media players
Procurement Notes
Verify the specific suffix 'IRTAANLZ' against official Renesas documentation to confirm pinout and thermal characteristics. Ensure the I2C interface configuration matches the host controller requirements. Check for any end-of-life notices or alternative part recommendations from the manufacturer before finalizing procurement plans.
Selection Notes
Select this component when designing battery-powered portable systems requiring multiple regulated rails from a single Li-ion source. The integrated mini-PMIC reduces board space compared to discrete solutions. Consider the 3MHz switching frequency for smaller passive components and the I2C flexibility for dynamic power management needs.
Part Context
This part belongs to the ISL9305 family of mini-Power Management ICs designed by Renesas. It is specifically engineered for mobile applications where space efficiency and multi-rail power distribution are critical. The integration of both switching and linear regulation simplifies the power architecture for low-voltage microprocessors.
Replacement Considerations
Consult Renesas datasheets for direct cross-references within the ISL9305 series. Verify compatibility of package dimensions and electrical specifications if considering alternative suppliers.
