ISL68233IRZ - Digital Dual-Output 5-Phase PWM Controller | Renesas
Артикул: ISL68233IRZ ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $4.14 | $4,14 |
| 10 | $3.72 | $37,20 |
| 100 | $3.21 | $321,00 |
| 500 | $2.74 | $1.370,00 |
| 1.000 | $2.31 | $2.310,00 |
ISL68233IRZ Обзор
A digital PWM controller is a microprocessor-supervised power-stage manager that drives external MOSFETs and dynamically adjusts switching frequency, phase count, and output voltage via firmware-configurable parameters. The ISL68233 sits within the broader hierarchy of PMBus-managed voltage regulators, which sit under DC-DC controllers, which are a subset of power management ICs used in telecom, datacom, and computing infrastructure.
Key features include PMBus V1.3 and AVSBus digital interfaces for telemetry, fault reporting, and dynamic voltage scaling; pin-strappable or pin-programmable configuration for boot settings; integrated MOSFET drivers for high-current output stages; and support for adaptive dead-time control and current sharing across phases. The 40-TQFN (5x5) package minimizes board footprint while providing the thermal headroom required for multiphase current delivery.
The ISL68233 employs a peak-current-mode control architecture with cycle-by-cycle current balancing between phases, enabling tight load-line accuracy and fast transient response. The digital core implements Renesas's proprietary charge-mode control loop, which compensates automatically over wide operating-condition ranges and eliminates the need for manual loop-component selection. This makes the device well-suited for dense, high-current rails such as core VCORE rails for processors, ASICs, and DDR memory.
Typical applications include POL converters for telecom and datacom infrastructure, DDR memory VTT/VPP rails, server core voltage regulation, ASIC/FPGA multi-rail power, and any high-current point-of-load system requiring digital telemetry and adaptive voltage scaling. The PMBus interface simplifies compliance with adaptive voltage positioning (AVP) schemes in modern processors.
When designing with this device, carefully follow Renesas's recommended external MOSFET selection and PCB layout guidelines for the 5x5 TQFN. Adequate decoupling and a Kelvin-sense connection to the inductor DCR or current-sense resistor are critical for accurate current sharing. The PMBus address and boot configuration must be set through external resistors and stored in non-volatile memory prior to first power-up.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes for the ISL68233 family not found in the manufacturer datasheet alone.
Аналоги без доработки для ISL68233IRZ — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с ISL68233IRZ (тот же форм-фактор и посадочное место) — отличается по Digital Interface, Maximum Phases (X+Y), Number of Outputs, Operating Temperature, Package.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
ISL68222IRZ
✅ Прямая замена✓ В наличии
$3.89 / шт.
Открыть даташит →ISL68233IRAZ
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ISL68233IRAZ-T
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ISL68222IRAZ
✅ Прямая замена✓ В наличии
$2.27 / шт.
Открыть даташит →ISL68233IRZ-T
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ISL68233IRZ Максимальные параметры и электрические характеристики
| Топология | Digital multiphase buck PWM controller |
| Количество выходов | 2 (X and Y) |
| Maximum Phases (X+Y) | 5 |
| Configuration Examples | 4+1, 3+2, 3+1, 1+1, 5+0 |
| Digital Interface | PMBus V1.3 / AVSBus |
| Корпус | 40-TQFN (5x5 mm) |
| Тип монтажа | Surface Mount |
| Output Polarity | Positive |
| Application | POL, DDR, Infrastructure |
| Рабочая температура | -40C to +85C (industrial) |
| Статус RoHS | Compliant |
| Lead Free | Yes |
| Product Family | ISL68222 / ISL68233 |
Конфигурация выводов ISL68233IRZ
| Контакт 1 | PGND — Power ground return for low-side drivers |
| Контакт 2 | LGATEA — Low-side gate driver output phase A |
| Контакт 3 | PHASEA — Switch node phase A |
| Контакт 4 | UGATEA — High-side gate driver output phase A |
| Контакт 5 | BST_A — Bootstrap capacitor phase A |
| Контакт 6 | VIN — Supply voltage for gate drivers |
| Контакт 7 | VDD — Controller analog/digital supply |
| Контакт 8 | VREF — Internal reference voltage |
| Контакт 9 | FB_A — Output voltage feedback channel A |
| Контакт 10 | VSEN_A — Differential voltage sense channel A positive |
| Контакт 11 | RTN_A — Differential voltage sense channel A return |
| Контакт 12 | IMON_A — Current monitor output channel A |
| Контакт 13 | ISEN_A — Current sense input channel A |
| Контакт 14 | NC — Not connected (per datasheet) |
| Контакт 15 | PGOOD_A — Power-good indicator channel A |
| Контакт 16 | EN_A — Enable input channel A |
| Контакт 17 | SDA — PMBus/AVSBus serial data |
| Контакт 18 | SCL — PMBus/AVSBus serial clock |
| Контакт 19 | ALERTB — PMBus alert interrupt output |
| Контакт 20 | SYNC — Synchronization input for multi-IC operation |
| Контакт 21 | AD0 — PMBus address select bit 0 |
| Контакт 22 | AD1 — PMBus address select bit 1 |
| Контакт 23 | CONFIG — Boot configuration strap pin |
| Контакт 24 | NC — Not connected (per datasheet) |
| Контакт 25 | EN_B — Enable input channel B |
| Контакт 26 | PGOOD_B — Power-good indicator channel B |
| Контакт 27 | ISEN_B — Current sense input channel B |
| Контакт 28 | IMON_B — Current monitor output channel B |
| Контакт 29 | RTN_B — Differential voltage sense channel B return |
| Контакт 30 | VSEN_B — Differential voltage sense channel B positive |
| Контакт 31 | FB_B — Output voltage feedback channel B |
| Контакт 32 | V25 — Internal 2.5 V regulator bypass |
| Контакт 33 | BST_B — Bootstrap capacitor phase B |
| Контакт 34 | UGATEB — High-side gate driver output phase B |
| Контакт 35 | PHASEB — Switch node phase B |
| Контакт 36 | LGATEB — Low-side gate driver output phase B |
| Контакт 37 | PGND — Power ground return for low-side drivers |
| Контакт 38 | PAD — Thermal pad - connect to ground plane |
| Контакт 39 | PAD — Thermal pad - connect to ground plane |
| Контакт 40 | PAD — Thermal pad - connect to ground plane |
Типичное применение
ISL68233IRZ подходит для 7 применениеs: Telecom and Datacom Infrastructure POL, DDR Memory VTT and VPP Rails, Server and ASIC Core Voltage Regulation, FPGA Multi-Rail Power, Industrial High-Current POL Systems, Network Switch and Router Power, AI Accelerator Board Power.
Telecom and Datacom Infrastructure POL
The ISL68233IRZ fits telecom/datacom point-of-load applications because its digital dual-output architecture with up to 5 phases and PMBus V1.3/AVSBus telemetry enables high-current rails with adaptive voltage scaling. The 40-TQFN (5x5) footprint supports dense line-card designs where multiple rails share one controller. Use it between a 12 V intermediate bus and the 0.6 V to 1.8 V core rails of network ASICs, where the part's PMBus monitoring reduces system-level debug time.
Рекомендуется
DDR Memory VTT and VPP Rails
The ISL68233IRZ is well suited to DDR4/DDR5 VTT and VPP generation where dual outputs (X+Y ≤ 5) cleanly map to one memory channel's VTT plus VPP rails. Its digital control loop maintains tight load-line accuracy under the dynamic load transients characteristic of DDR read/write bursts, and PMBus telemetry lets the BMC track current and temperature in real time. Position the IC downstream of a 12 V or 5 V intermediate bus, with the VTT rail sized to deliver peak DIMM burst current.
Рекомендуется
Server and ASIC Core Voltage Regulation
The ISL68233IRZ drives server-core and ASIC VCORE rails because its 5-phase capability, current-mode control, and adaptive dead-time management deliver the high continuous current demanded by high-TDP processors. The 40-TQFN (5x5) keeps the controller footprint small while external MOSFETs scale current. Use it where AVSBus-based dynamic voltage scaling is required to coordinate core frequency and voltage under thermal constraints.
Рекомендуется
FPGA Multi-Rail Power
The ISL68233IRZ targets FPGA multi-rail designs where one rail drives the core (0.85 V to 1.0 V, high current) and another drives transceiver or auxiliary supplies. Its pin-strappable boot configuration lets the system power up with default voltages before PMBus reprogramming. Per Renesas, the digital loop maintains regulation accuracy across load steps from mA to tens of amps, ideal for FPGA transceivers that toggle between idle and active states.
Рекомендуется
Industrial High-Current POL Systems
The ISL68233IRZ operates from -40C to +85C, making it appropriate for industrial POL modules where wide temperature swings and high reliability are mandatory. Its PMBus fault reporting (OCP, OVP, UVP, OT) lets system integrators log faults for predictive maintenance. Deploy it in factory automation controllers, robotics power boards, and industrial PCs where multiple high-current rails need centralized telemetry.
Рекомендуется
Network Switch and Router Power
The ISL68233IRZ powers network switch line cards where its dual-output flexibility supplies both packet-processor core rails and PHY/MAC rails from a single controller. PMBus V1.3 telemetry integrates with the switch's management plane to log voltage, current, and temperature per port. The 40-TQFN (5x5) footprint keeps controller area small enough to place one per switch ASIC, simplifying PCB partitioning.
Рекомендуется
AI Accelerator Board Power
The ISL68233IRZ fits AI accelerator card designs where multiple GPUs or custom ASICs need matched VCORE rails with tight tolerance and fast transient response. Its 5-phase capability scales from a 60 A single rail to two rails of 30 A each, and PMBus telemetry synchronizes with the accelerator's power-management firmware. Use external DrMOS or discrete MOSFETs sized to the rail's continuous and peak currents.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ISL68233IRZ — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ISL68222IRZ | ISL68233IRAZ | ISL68233IRAZ-T | ISL68222IRAZ | ISL68233IRZ-T |
|---|---|---|---|---|---|---|
| Package | 40-TQFN (5x5) | 40-TQFN (5x5) - same | 40-TQFN (5x5) - same | 40-TQFN (5x5) - same | 40-TQFN (5x5) - same | 40-TQFN (5x5) - same |
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Topology | Digital dual-output multiphase PWM | Digital multiphase PWM | Digital dual-output multiphase PWM | Digital dual-output multiphase PWM | Digital multiphase PWM | Digital dual-output multiphase PWM |
| Maximum Phases (X+Y) | 5 | 5 | 5 | 5 | 5 | 5 |
| Digital Interface | PMBus V1.3 / AVSBus | PMBus V1.3 / AVSBus | PMBus V1.3 / AVSBus | PMBus V1.3 / AVSBus | PMBus V1.3 / AVSBus | PMBus V1.3 / AVSBus |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Pin Configuration | IRZ suffix, standard pinout | IRZ suffix, ISL68222 family | IRAZ suffix, standard pinout | IRAZ-T suffix, tape & reel | IRAZ suffix, ISL68222 family | IRZ-T suffix, tape & reel |
Ключевые отличия
- Dual-output architecture in 40-TQFN (5x5) reduces component count (против ISL68222IRZ)
- Integrated AVSBus interface for adaptive voltage scaling (против ISL68233IRAZ-T)
- Pin-compatible family scaling across the ISL6822x lineup (против ISL68222IRAZ)
Заметки по проектированию
Route the high-di/dt loops (UGATE-PHASE, LGATE-PGND, BOOT-CIN) on the ISL68233IRZ PCB using the smallest possible loop area and place ceramic bypass capacitors directly across the driver supply pins. The 40-TQFN (5x5) thermal pad must be soldered to a ground plane with at least 4 thermal vias (9-12 mil drill, 1 oz copper) to keep the controller junction temperature below the 125C maximum under full multiphase loading.
Use a Kelvin-sense connection for VSEN_A/VSEN_B differential feedback and route the pair as a matched-length differential trace from the output capacitor to the IC. For current sensing, place the ISEN resistor or DCR-sense network within 5 mm of the controller to avoid noise pickup on the analog current-share bus. Avoid routing these analog traces near the switch-node (PHASE) copper pours.
Do not assume the ISL68233IRZ and ISL68233IRAZ are pin-identical without checking the suffix decode table - the IRZ and IRAZ variants target different stocking channels but share the same die. PMBus address strapping resistors must be populated before first power-up or the controller will default to address 0x60; pull-ups on SDA/SCL should be 2.2 kohm to 4.7 kohm per the AVSBus specification.
Информация о соответствии
RoHS and lead-free compliance per Renesas product page. AEC-Q100 not qualified - for automotive applications contact Renesas about ISL68233-Q1 variants if available.
