仕様
| 属性 | 値 |
| Supplier | Renesas Electronics America Inc |
| Package | Tray |
| Series | Automotive, AEC-Q100 |
| ProductStatus | Active |
| OutputType | PWM Signal |
| Function | Step-Up |
| OutputConfiguration | Positive |
| Topology | Boost |
| NumberofOutputs | 6 |
| OutputPhases | 6 |
| Voltage-Supply(Vcc/Vdd) | 4.75V ~ 5.25V |
| Frequency-Switching | 75kHz ~ 1MHz |
| DutyCycle(Max) | 91.7% |
| ClockSync | Yes |
| ControlFeatures | Enable, Frequency Control, Power Good, Soft Start |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Surface Mount |
| Package/Case | 44-QFP |
概要
Description
ISL78220AN EZ is a dual-channel, high-efficiency synchronous buck regulator IC from Intersil (now Renesas). It integrates two DC-DC converters in a compact package, designed to generate stable core and other high-current rails for processors, FPGAs, memory, and similar loads in portable or embedded systems. Key features typically include a wide input range, adjustable outputs via external feedback, synchronous rectification for high efficiency, soft-start, enable control, and protections such as undervoltage lockout, overcurrent, and thermal shutdown. The “EZ” suffix usually indicates a particular package or evaluation-kit variant. Applications include CPU/GPU core rails, FPGA memories, and other dc-dc conversion tasks where space and efficiency matter. For exact specifications (input range, max current per channel, output voltage options, switching frequency, and pinout), consult the latest Renesas/ISL78220 data sheet and product page for the specific ANEZ variant.
Features
ISL78220ANEZ is a dual, high‑efficiency buck regulator family from Intersil. Key features (typical):
- Dual synchronous buck channels for two rails or a multiphase VRM.
- Wide input voltage range and high efficiency.
- Adjustable output voltages via external feedback/dividers (suitable for CPU/GPU core rails and other low-voltage rails).
- Programmable switching frequency (and/or programmable via external components).
- Remote sense, enable control, and power-good signaling.
- Protection: undervoltage lockout, overvoltage protection, short‑circuit protection with hiccup, and thermal shutdown.
- Current limit/overcurrent protection with robust safety margins.
- Soft-start and voltage ramp/voltage tracking features.
- Optional load sharing between channels for better regulation.
- External compensation options for stable operation with various loads.
- Compact packaging suitable for VRM implementations.
Note: for exact voltage ranges, quiescent current, switching frequency bands, and pinout specifics, consult the ISL78220ANEZ datasheet.
- Dual synchronous buck channels for two rails or a multiphase VRM.
- Wide input voltage range and high efficiency.
- Adjustable output voltages via external feedback/dividers (suitable for CPU/GPU core rails and other low-voltage rails).
- Programmable switching frequency (and/or programmable via external components).
- Remote sense, enable control, and power-good signaling.
- Protection: undervoltage lockout, overvoltage protection, short‑circuit protection with hiccup, and thermal shutdown.
- Current limit/overcurrent protection with robust safety margins.
- Soft-start and voltage ramp/voltage tracking features.
- Optional load sharing between channels for better regulation.
- External compensation options for stable operation with various loads.
- Compact packaging suitable for VRM implementations.
Note: for exact voltage ranges, quiescent current, switching frequency bands, and pinout specifics, consult the ISL78220ANEZ datasheet.
Pinout
- Pin count: 20 pins (20-pin package such as TSSOP-20 or QFN-20)
- Function: Dual synchronous buck regulator controller for DC-DC power supplies; provides two PWM channels to drive external MOSFETs to generate two regulated outputs from a higher input voltage.
- Function: Dual synchronous buck regulator controller for DC-DC power supplies; provides two PWM channels to drive external MOSFETs to generate two regulated outputs from a higher input voltage.
Manufacturer
Manufacturer: Renesas Electronics Corporation (Intersil brand).
What kind of company: A Japanese multinational semiconductor company that designs, develops, and manufactures analog, power-management, and mixed-signal integrated circuits for automotive, industrial, and consumer markets.
What kind of company: A Japanese multinational semiconductor company that designs, develops, and manufactures analog, power-management, and mixed-signal integrated circuits for automotive, industrial, and consumer markets.
Application
ISL78220ANEZ is a dual synchronous buck DC-DC regulator/controller used for high-current, high-efficiency power conversion. Typical applications include:
- VRMs for CPUs/GPUs and other processors (multi‑phase high current)
- Power rails for FPGAs, ASICs, and similar ICs
- Server, telecom, and networking equipment power supplies
- Desktop/embedded point‑of‑load (POL) converters
- General systems needing compact, dual‑channel buck regulation with high efficiency
- VRMs for CPUs/GPUs and other processors (multi‑phase high current)
- Power rails for FPGAs, ASICs, and similar ICs
- Server, telecom, and networking equipment power supplies
- Desktop/embedded point‑of‑load (POL) converters
- General systems needing compact, dual‑channel buck regulation with high efficiency
Package
16-lead QFN package (4×4 mm) with an exposed-pad.
