ISL9305IRTHAANLZ-T

Overview

The ISL9305IRTHAANLZ-T is a mini-PMIC integrating two 800mA synchronous buck converters and two LDOs. It features a 3MHz switching frequency and an I2C interface for programmable outputs ranging from 0.8V to VIN. The device supports low input voltages, with buck inputs from 2.3V to 5.5V and LDO inputs from 1.5V to 5.5V. Packaged in a 16-TQFN (4x4) format, it offers adjustable output voltages via I2C steps of 25mV for DC/DC and 50mV for LDOs, ensuring efficient power management for portable applications.

Feature Summary

• Integrates dual high-efficiency synchronous step-down converters and dual low-input linear regulators within a single compact package.
• Provides flexible I2C-compatible interface for on-the-fly programming of output voltages and operational modes.
• Supports configurable skip mode or fixed PWM frequency operation to optimize efficiency under varying load conditions.

Applications

• Cellular phones
• Smart phones
• PDAs

Procurement Notes

Verify component authenticity through authorized Renesas distributors. Confirm the specific suffix matches the required package and temperature grade. Check current availability status as inventory levels fluctuate. Ensure proper ESD handling during storage and assembly. Validate that the I2C address configuration aligns with system requirements before integration.

Selection Notes

Select this component when space-constrained designs require multiple voltage rails from a single battery source. Consider its I2C programmability for flexible voltage adjustments without external resistors. Evaluate the 3MHz switching frequency for smaller passive component sizes. Assess the quiescent current specifications against standby power requirements for portable devices.

Part Context

This part belongs to the ISL9305 family of mini-PMICs designed for mobile applications. It consolidates power management functions typically requiring multiple discrete components. The series targets systems needing efficient power conversion from single-cell lithium-ion or polymer batteries. It complements Renesas' portfolio of embedded processing solutions for handheld electronics.

Replacement Considerations

ISL9305IRTAANLZ-T

FAQ

What is the maximum output current for the buck converters?

Each of the two synchronous step-down converters can deliver up to 800mA.

How are the output voltages adjusted?

Output voltages are programmed via an I2C interface, allowing adjustable steps of 25mV for DC/DC and 50mV for LDOs.