Renesas HIP6004DCRZ

Overview

HIP6004DCRZ from Intersil is a synchronous-rectified buck PWM controller with integrated voltage-mode regulation, 5-bit TTL-compatible DAC for 1.10–1.85V output programming in 25mV steps, and MOSFET r_DS(ON)-based overcurrent sensing. It drives two N-channel MOSFETs, operates from +12V bias, and delivers fast transient response via 15MHz GBWP error amplifier and 0–100% duty cycle control - used in K7™ microprocessor power supplies.

For engineers reviewing the HIP6004DCRZ datasheet, HIP6004DCRZ pinout, HIP6004DCRZ application, or HIP6004DCRZ equivalent, key selection criteria include its QFN-20 package thermal performance (θ_JA = 33°C/W), 200kHz programmable oscillator (50kHz–1MHz), ±1% output regulation over line/temperature, PGOOD window monitor (±10%), and OVP/OC protection without external sense resistors.

Technical Context

The HIP6004DCRZ implements voltage-mode PWM control using a 200kHz free-running oscillator adjustable via RT-to-GND or RT-to-VCC resistor networks. Its error amplifier features 15MHz gain-bandwidth and 6V/µs slew rate to support high-loop bandwidth for microprocessor load transients.

Overcurrent protection uses an internal 200µA current source at OCSET to develop a trip threshold across ROCSET, compared against the upper MOSFET's r_DS(ON) voltage drop - eliminating discrete current-sense resistors. Power-good monitoring tracks DACOUT with 110%/90% rising/falling thresholds and 2% hysteresis.

Key Specifications

Pinout & Package

HIP6004DCRZ is housed in a RoHS-compliant, Pb-free 5×5mm QFN-20 package (JEDEC MO-220 L20.5x5) with exposed thermal pad. Pin numbering follows standard top-view orientation with GND (Pin 11) and PGND (Pin 16) as separate signal and power ground terminals.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar buck controller applications.

Compared with HIP6004DCRZ, ISL6522IRZ offers higher frequency flexibility and better thermal metrics for next-gen designs, while TPS51116PWR trades integrated dual-rail control for loss of MOSFET-resistance-based current monitoring - making HIP6004DCRZ uniquely suited for cost-sensitive, single-rail K7™-class supplies where sense-resistor elimination is critical.

Availability

HIP6004DCRZ is available at Aetrix Electronics and suitable for microprocessor core supplies, low-voltage distributed power systems, and high-power DC-DC regulators requiring stable component supply across extended production lifecycles.

Supply support for HIP6004DCRZ 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, specializes in high-performance analog and power management ICs for computing, industrial, and communications markets.

The HIP6004D product line was engineered specifically for high-current, low-voltage microprocessor power delivery - emphasizing precision DAC-based voltage scaling, MOSFET r_DS(ON) current sensing, and robust fault protection in compact QFN packaging.

FAQ

What is the recommended operating voltage range for the VCC pin of the HIP6004DCRZ?

The HIP6004DCRZ requires a +12V ±10% bias supply on the VCC pin, with a minimum rising threshold of 10.4V to exit Power-On Reset. Operation below 10.4V prevents initialization, and absolute maximum rating is +15V. The HIP6004DCRZ does not support +5V-only operation - unlike some earlier controllers, it mandates +12V for gate driver strength and internal regulator stability.

How does the HIP6004DCRZ implement overcurrent protection without a sense resistor?

The HIP6004DCRZ uses the upper MOSFET's r_DS(ON) as the current-sense element. An internal 200µA current source at OCSET develops a voltage across an external ROCSET resistor; when the voltage drop across the MOSFET's channel exceeds this reference, the controller triggers hiccup-mode soft-start. This method eliminates power loss and board space associated with discrete shunts - a defining feature of the HIP6004DCRZ design.

Can the HIP6004DCRZ be used with a 500kHz switching frequency?

Yes, the HIP6004DCRZ supports 500kHz operation via the RT pin. Using the documented equation F_s ≈ 200kHz + 5×10⁶/(RT in kΩ) with RT = 10kΩ to GND achieves ~700kHz; for 500kHz, RT ≈ 25kΩ to GND. The oscillator remains stable across 50kHz–1MHz, and the HIP6004DCRZ's 15MHz error amplifier GBWP maintains loop stability at this frequency.

What is the function of the '11111' VID code on the HIP6004DCRZ?

The '11111' VID code (all VID pins high) disables the HIP6004DCRZ gate drivers and forces 0V output, activating Power-On Reset behavior. Uniquely, PGOOD asserts high in this state - enabling AND-gating of multiple HIP6004DCRZ outputs in dual-CPU systems. This VID combination is explicitly defined in Table 1 of the HIP6004DCRZ datasheet and is not a fault condition.

Does the HIP6004DCRZ require external bootstrap components for high-side drive?

Yes, the HIP6004DCRZ requires an external bootstrap capacitor between BOOT and PHASE pins to generate the floating voltage needed to fully enhance the upper N-MOSFET. A typical value is 0.1µF ceramic placed adjacent to the IC. No external diode is required - the HIP6004DCRZ integrates bootstrap charging control, and proper BOOT capacitor placement is critical for reliable UGATE operation in the HIP6004DCRZ.