Renesas IPM6220ACAZ

Overview

IPM6220ACAZ from Intersil is an advanced triple PWM and dual linear power controller in a 24-lead SSOP package, designed for notebook PC power systems. It delivers five regulated outputs: +5V ALWAYS (50 mA), +3.3V ALWAYS (50 mA), +5V Main (5 A), +3.3V Main (5 A), and +12V boost (120 mA), with synchronous buck converters, hysteretic light-load mode, and integrated current sensing via MOSFET r_DS(ON). It operates from 5.6 V to 24 V battery input and supports ACPI-compliant shutdown sequencing.

For engineers reviewing the IPM6220ACAZ datasheet, IPM6220ACAZ pinout, IPM6220ACAZ application, or IPM6220ACAZ equivalent, key selection considerations include its fixed 300 kHz switching frequency on main outputs, out-of-phase operation for reduced input ripple, Pb-free SSOP packaging, UVLO at 4.7 V, and integrated PGOOD monitoring across four regulated rails.

Technical Context

The IPM6220ACAZ integrates two synchronous buck controllers (5V/3.3V Main) with current-mode control, input voltage feed-forward ramp modulation, and adaptive dead-time gate drivers - enabling fast transient response and high efficiency across wide line/load ranges. Its third channel is a 100 kHz boost controller with 33% max duty cycle and leading-edge PWM for stable 12V generation from the 5V Main rail.

It features dual low-current linear regulators (+5V/+3.3V ALWAYS) with internal bypass switching: when +5V Main is active, it supersedes the 5V ALWAYS LDO via a 1.3 Ω internal MOSFET, reducing dissipation. Shutdown is managed through three independent pins (SDWN1, SDWN2, SDWNALL) for precise ACPI-compatible power sequencing and stand-by mode with only 300 µA quiescent current.

Key Specifications

Pinout & Package

IPM6220ACAZ is housed in a 24-lead SSOP (Small Outline Package), Pb-free, with 0.635 mm lead pitch and M24.15 package drawing. Thermal resistance θ_JA = 110°C/W.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar multi-rail power controller applications.

Compared with ISL6220CRZ, IPM6220ACAZ offers identical functionality but with legacy Pb-free qualification; compared with RT8205AZQW, IPM6220ACAZ provides full five-rail integration including linear regulators, reducing total solution size and complexity at the cost of slightly higher standby current.

Availability

IPM6220ACAZ is available at Aetrix Electronics and suitable for notebook PC power subsystems, mobile industrial terminals, handheld test instruments, and sub-notebook platforms requiring stable component supply and long-term lifecycle support.

Supply support for IPM6220ACAZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Intersil Corporation (now part of Renesas Electronics) is a U.S.-based analog and power management IC designer known for high-performance power solutions targeting computing and portable electronics.

The IPM6220ACAZ belongs to Intersil's Advanced Notebook Power Controller product line, engineered specifically to consolidate multiple voltage rails and replace discrete power ICs in space-constrained, thermally sensitive mobile computing platforms.

FAQ

What is the maximum continuous output current supported by the IPM6220ACAZ on its 5V Main and 3.3V Main rails?

The IPM6220ACAZ supports up to 5.0 A continuous output current on both the 5V Main and 3.3V Main synchronous buck outputs, as specified under recommended operating conditions with 5.6 V to 22.0 V input and ambient temperatures from –10°C to 85°C. Current limit thresholds are set via ISEN1/ISEN2 pins using either MOSFET r_DS(ON) or optional external sense resistors, with typical trip points at 135 µA corresponding to ~5 A depending on MOSFET selection. The IPM6220ACAZ datasheet confirms this rating across its full operating range.

Does the IPM6220ACAZ require external current-sense resistors for basic operation?

No, the IPM6220ACAZ does not require external current-sense resistors for basic operation. It uses the lower MOSFET's r_DS(ON) as the primary current-sensing element for both 5V Main and 3.3V Main buck converters - eliminating sense resistor losses and saving PCB area. External resistors are optional and only needed when higher current-limit accuracy is required beyond the ±30% tolerance inherent in r_DS(ON)-based sensing. The IPM6220ACAZ datasheet explicitly states "No Current-Sense Resistor Required" as a key feature.

How does the IPM6220ACAZ handle power sequencing between its five output rails?

The IPM6220ACAZ implements precise power sequencing via three dedicated control pins: SDWNALL (global enable), SDWN1 (5V Main enable), and SDWN2 (3.3V Main enable). When SDWNALL is high, the 5V ALWAYS and 3.3V ALWAYS linear regulators activate immediately; 5V Main and 3.3V Main then ramp up based on soft-start capacitors tied to SDWN1/SDWN2. The IPM6220ACAZ supports four distinct power states defined in Table 1 of its datasheet, enabling ACPI S0–S5 compatibility without external sequencing ICs. This built-in logic ensures repeatable, glitch-free startup and shutdown sequences for the IPM6220ACAZ.

Can the 12V boost output of the IPM6220ACAZ be disabled independently of the other rails?

Yes, the 12V boost output of the IPM6220ACAZ can be disabled independently by connecting the VSEN3 pin to the 5V ALWAYS supply. According to the IPM6220ACAZ datasheet, this action forces the boost controller into shutdown while leaving all other outputs - including 5V ALWAYS, 3.3V ALWAYS, 5V Main, and 3.3V Main - fully operational. This flexibility allows designers to omit the external boost components (MOSFET, inductor, diode, capacitor) when 12V is not required, reducing BOM cost and board area without affecting the rest of the IPM6220ACAZ functionality.

What thermal protection mechanisms are implemented in the IPM6220ACAZ?

The IPM6220ACAZ incorporates thermal shutdown protection that activates at 150°C junction temperature, with 25°C hysteresis to prevent oscillation near the trip point. Once triggered, the IC disables all PWM outputs while keeping the 5V ALWAYS and 3.3V ALWAYS linear regulators active - preserving basic system functionality during thermal events. The IPM6220ACAZ also includes input undervoltage lockout (UVLO) at 4.7 V and overvoltage protection (OVP) on all monitored rails (5V Main, 3.3V Main, 12V), latching off the affected converter upon fault detection. These protections are fully integrated and require no external components to function.