ISL99227FRZ-T - Smart Power Stage 60A PQFN-32 | Renesas
Référence : ISL99227FRZ-T ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $4.5 | $4,50 |
| 10 | $4.05 | $40,50 |
| 100 | $3.6 | $360,00 |
| 500 | $3.2 | $1 600,00 |
| 1 000 | $2.85 | $2 850,00 |
ISL99227FRZ-T Présentation
What is a Smart Power Stage? A Smart Power Stage is a fully integrated power block that combines the synchronous buck MOSFETs, driver IC, and telemetry (current-sense, temperature-sense) into a single package. It sits downstream of a multiphase PWM controller and replaces the discrete DrMOS-plus-shunt-sensor stack, simplifying PCB routing, shrinking loop inductance, and improving efficiency at high switching frequencies (typically 600 kHz to 2 MHz). Smart Power Stages belong to the broader hierarchy: power MOSFET driver / DrMOS -> power management IC -> semiconductor.
Key features include a 3.3V/5V-compatible tri-state PWM input, integrated fault protection (UVLO, over-temperature, over-current), an open-drain fault flag (FAULT#), and accurate IMON/ITMON analog telemetry outputs. The integrated current monitor eliminates the external inductor DCR sense network and its associated NTC thermistor, reducing BOM count and improving accuracy across temperature.
Typical applications include VR12.5/VR13 server and datacenter core regulators, networking ASIC and FPGA rails, telecom DC/DC bricks, and high-current GPU/CPU multiphase VRs where each phase uses one ISL99227. The tri-state PWM interface ensures robust start-up and clean shutdown with the ISL68xxx/ISL69xxx family controllers, while the integrated protections let the system meet server-grade reliability requirements without a separate supervisor IC.
Designers should pair this part with a multiphase controller such as ISL68127 or ISL69147 (same Renesas family) and add 4x 22uF ceramic input capacitors plus a 1uF bootstrap cap per phase. The PQFN-32 exposed pad is the primary thermal path - use a 4-layer PCB with at least 1 sq-in top copper pour for 60A operation; thinner PCBs will trip OTP. Estimate: with 12V VIN, 1V VOUT, 60A load, 94% efficiency, dissipation is ~3.8W per phase and theta_JA must stay under 10 C/W for safe Tj<125C.
Alternatives de remplacement direct pour ISL99227FRZ-T — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ISL99227BFRZ-T
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ISL99227FRZ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ISL99227HRZ-T
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ISL99227FRZ-T Valeurs maximales et caractéristiques électriques
| Product Type | Smart Power Stage (SPS) / DrMOS module |
| Fonction | Integrated high-side/low-side MOSFETs + driver + current/temperature monitor |
| Output Current (per phase) | 60 A |
| PWM Input Compatibility | 3.3 V / 5 V tri-state |
| Integrated Protections | UVLO, over-temperature (OTP), over-current (OCP) |
| Fault Output | Open-drain FAULT# pin |
| Current Monitor Output | IMON analog output (proportional to inductor current) |
| Temperature Monitor Output | ITMON analog output (proportional to die temperature) |
| Compatible Controllers | ISL68xxx / ISL69xxx Digital Multiphase Controllers, ISL6617A phase doubler |
| Boîtier | 32-PQFN (5x5 mm) with exposed thermal pad |
| Statut RoHS | Compliant |
| Type de montage | Surface Mount |
Configuration des broches de ISL99227FRZ-T
| Broche 1 | PWM — Tri-state PWM input (3.3V/5V logic) |
| Broche 2 | LGND — Low-side gate driver ground return |
| Broche 3 | BOOT — Bootstrap supply for high-side gate driver |
| Broche 4 | LX — Phase node (switching node to output inductor) |
| Broche 5 | VCC — Driver IC supply (decouple with 1 uF) |
| Broche 6 | VIN — Power input (high-side drain supply) |
| Broche 7 | NC — Not connected (per datasheet) |
| Broche 8 | NC — Not connected (per datasheet) |
| Broche 9 | FAULT# — Open-drain fault output (active low) |
| Broche 10 | NC — Not connected (per datasheet) |
| Broche 11 | IMON — Analog current monitor output |
| Broche 12 | ITMON — Analog temperature monitor output |
| Broche 13 | NC — Not connected (per datasheet) |
| Broche 14 | NC — Not connected (per datasheet) |
| Broche 15 | NC — Not connected (per datasheet) |
| Broche 16 | NC — Not connected (per datasheet) |
| Broche 17 | NC — Not connected (per datasheet) |
| Broche 18 | NC — Not connected (per datasheet) |
| Broche 19 | NC — Not connected (per datasheet) |
| Broche 20 | NC — Not connected (per datasheet) |
| Broche 21 | PGND — Power ground (low-side source) |
| Broche 22 | PGND — Power ground (low-side source) |
| Broche 23 | PGND — Power ground (low-side source) |
| Broche 24 | PGND — Power ground (low-side source) |
| Broche 25 | NC — Not connected (per datasheet) |
| Broche 26 | NC — Not connected (per datasheet) |
| Broche 27 | NC — Not connected (per datasheet) |
| Broche 28 | NC — Not connected (per datasheet) |
| Broche 29 | NC — Not connected (per datasheet) |
| Broche 30 | VIN — Power input (high-side drain supply) |
| Broche 31 | VCC — Driver IC supply (decouple with 1 uF) |
| Broche 32 | LGND — Low-side gate driver ground return |
Applications typiques
ISL99227FRZ-T convient pour 6 applications: Server CPU/GPU Core VR (VR12.5 / VR13), Datacenter 48V-to-Point-of-Load Conversion, Networking ASIC / FPGA Power Rails, AI Accelerator and GPU Boards, Telecom DC/DC Brick Modules, Industrial High-Current POL Regulators.
Server CPU/GPU Core VR (VR12.5 / VR13)
The ISL99227FRZ-T is purpose-built for server-class multiphase VR12.5/VR13 core regulators where each phase must deliver up to 60 A cleanly at 600 kHz-2 MHz switching. Its integrated IMON and ITMON telemetry directly feed the ISL68xxx/ISL69xxx Digital Multiphase Controller for accurate per-phase current balancing and adaptive voltage positioning (AVP), critical for dynamic load transients from multi-core CPUs. Compared with discrete DrMOS designs the SPS eliminates external DCR sense networks, cutting BOM by 4-6 parts per phase. The integrated UVLO/OTP/OCP and open-drain FAULT# output meet server-grade telemetry and reliability targets.
Recommandé
Datacenter 48V-to-Point-of-Load Conversion
In 48V-to-PoL architectures the ISL99227FRZ-T sits on the secondary side of an isolated DC/DC bus converter (e.g. ISL850xx or ISL980xx family) forming the final synchronous buck stage to the load. Each phase carries up to 60 A at high frequency, and multiple phases are stacked (3+ phases) to deliver 150-300 A rails for GPUs, TPUs, and AI accelerators. The 32-PQFN 5x5 footprint keeps the solution compact under the inductor - critical for the dense PoL layout typical of OCP accelerator cards. Renesas's tri-state PWM protocol ensures clean start-up/shutdown with ISL68xxx controllers during 48V bus transients.
Recommandé
Networking ASIC / FPGA Power Rails
High-end networking ASICs and FPGAs in switches/routers require multiple low-voltage high-current rails (typically 0.7-1.2 V at 30-120 A) with tight regulation. The ISL99227FRZ-T's 60 A per-phase rating and high-accuracy IMON output support dynamic load steps typical of packet-processing ASICs that swing from sleep to full-burst in microseconds. Its tri-state PWM and FAULT# outputs integrate cleanly with ISL69xxx controllers used in networking reference designs. Renesas datasheets show typical 12V-Vin / 1V-Vout efficiency >94% at 600 kHz, minimising thermal dissipation in sealed chassis.
Recommandé
AI Accelerator and GPU Boards
AI training boards (GPUs, TPUs, custom accelerators) demand 200-600 A rails sourced from 6-12 parallel phases. Each ISL99227FRZ-T phase contributes up to 60 A with telemetry that the controller uses for per-phase current sharing and thermal balancing - essential when phases are physically distributed across a large PCB. The integrated OTP protects phases when AI workloads create localised hot spots; the FAULT# pin flags the host BMC for graceful workload migration. Renesas designs typically use 8-12 ISL99227 phases with two ISL68127 controllers for 480-720 A rails in flagship AI cards.
Recommandé
Telecom DC/DC Brick Modules
The ISL99227FRZ-T is qualified for use inside telecom brick modules (e.g. 12V-input intermediate bus converters feeding PoL rails). Its 60 A per-phase capability and integrated current/temperature monitors enable brick designs that meet NEBS and ETSI thermal/reliability specs without external sense circuitry. The 32-PQFN 5x5 package footprint allows the SPS to be mounted directly under the output inductor for minimum LX-loop inductance, reducing ringing and improving efficiency above 1 MHz. The FAULT# pin is wired to the brick's supervisory microcontroller for system-level fault logging.
Recommandé
Industrial High-Current POL Regulators
Industrial PLCs, test instruments, and factory-automation controllers need compact, high-current POL rails with telemetry. The ISL99227FRZ-T fits 2-4 phase designs delivering 120-240 A at 1-3.3 V outputs with industrial temperature compliance. Its tri-state PWM interface simplifies sequencing across multiple rails in industrial backplanes, while the integrated OTP/OCP eliminates the need for separate supervisor ICs. Compared to discrete DrMOS stacks the SPS simplifies EMI compliance by reducing switching-node parasitics - critical for IEC 61000-4 industrial environments.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ISL99227FRZ-T — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ISL99227BFRZ-T | ISL99227FRZ | ISL99227HRZ-T |
|---|---|---|---|---|
| Brand | Renesas Electronics | Renesas Electronics | Renesas Electronics | Renesas Electronics |
| Package | PQFN-32 (5x5 mm) | PQFN-32 (5x5 mm) - same | PQFN-32 (5x5 mm) - same | PQFN-32 (5x5 mm) - same |
| Output Current (per phase) | 60 A | 60 A | 60 A | 60 A |
| Compatible Controller | ISL68xxx / ISL69xxx DMP | ISL6617A phase doubler | ISL68xxx / ISL69xxx DMP | ISL68xxx / ISL69xxx DMP |
| PWM Interface | 3.3V/5V tri-state | 3.3V/5V tri-state | 3.3V/5V tri-state | 3.3V/5V tri-state |
| Integrated IMON/ITMON | Yes | Yes | Yes | Yes |
| Integrated Protections (UVLO/OTP/OCP) | Yes | Yes | Yes | Yes |
| FAUX/FAULT# Output | Open-drain FAULT# | Open-drain FAULT# | Open-drain FAULT# | Open-drain FAULT# |
| RoHS Compliance | Yes | Yes | Yes | Yes |
Principaux différenciateurs
- Integrated IMON/ITMON telemetry eliminates external DCR sense (vs Discrete DrMOS + external DCR sense network)
- Single-supply tri-state PWM interface compatible with Renesas DMP controllers (vs Generic DrMOS requiring bootstrap PWM signalling)
- Open-drain FAULT# output supports per-phase fault isolation (vs Discrete DrMOS without integrated fault output)
Notes de conception
The 32-PQFN exposed pad is the dominant heat path. Estimated: at VIN=12V, VOUT=1V, 60 A load and 94% efficiency, per-phase dissipation is ~3.8W. A 4-layer PCB with at least 1 sq-in top copper (2 oz recommended) keeps theta_JA under ~10 C/W; without adequate copper the junction will trip OTP and the FAULT# pin asserts. Place thermal vias in the exposed pad (12-16 vias, 0.3 mm drill) to inner copper planes.
Per Renesas datasheet layout guidelines: place 4x 22 uF X7R 0805 ceramic input capacitors within 5 mm of the high-side drain pins (VIN). Keep the bootstrap capacitor (1 uF X7R 0603) within 2 mm of the BST pin. The LX switching node trace must be short and wide; minimise loop area between LX, the low-side FET, and PGND. Route IMON and ITMON traces guarded from LX coupling by a GND keep-out to preserve telemetry accuracy.
Do not confuse ISL99227 (ISL68xxx/ISL69xxx controllers) with ISL99227B (ISL6617A doubler) - same footprint but different PWM protocol and the system will not start if swapped. The FAULT# pin is open-drain and requires a pull-up (typically 10 kOhm to 3.3V). Always place the 1 uF VCC bypass within 3 mm of the VCC pin and the 0.1 uF VCC bypass adjacent. Do not float LGND - tie each LGND pin to the inner GND plane with multiple vias.
The tri-state PWM input is robust but requires clean edges; place a 10 Ohm source-series resistor close to the controller PWM output to dampen ringing. The IMON and ITMON analog outputs are high-impedance; guard them from the LX switching node with a GND trace to avoid capacitive coupling that would corrupt current/temperature telemetry. Keep IMON/ITMON trace length under 25 mm when possible.
Informations de conformité
RoHS compliant per Renesas product page. Industrial/commercial grade - not AEC-Q100 qualified for automotive. Halogen-free status not confirmed from Verified Web Data.
