MIC33M656集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器規(guī)格書PDF中文資料

MIC33M656屬于集成電路（IC）的穩(wěn)壓器-DC-DC開關(guān)穩(wěn)壓器。由微芯科技股份有限公司制造生產(chǎn)的MIC33M656穩(wěn)壓器 - DC-DC 開關(guān)穩(wěn)壓器DC-DC 開關(guān)穩(wěn)壓器 PMIC（電源管理集成電路）產(chǎn)品族中的產(chǎn)品是元器件級(jí)設(shè)備，用于需要穩(wěn)定 DC 輸入電壓和/或?qū)⑵滢D(zhuǎn)換為不同幅度的輸出電壓的應(yīng)用。這些器件與稱為“控制器”PMIC 的類似產(chǎn)品的區(qū)別在于集成了主開關(guān)元件，設(shè)備提供的電力會(huì)通過該元件。

General Description

The Microchip MIC33M656 is an I2C programmable,

high-efficiency, low-voltage input, 6A current, synchronous

step-down regulator power module with

integrated inductor. The Constant-On-Time (COT) control

architecture with HyperLight Load? mode provides

very high efficiency at light loads, while still having

ultra-fast transient response.

The I2C interface allows programming the output

voltage, between 0.6V and 1.28V with 5 mV resolution,

or between 0.6V and 3.84V with 10 mV and 20 mV

resolution. Three different default voltage options

(0.6V, 0.9V and 1.0V) are provided so that the application

can be started with a safe voltage level and then

moved to high-performance modes under I2C control.

An open-drain Power Good output facilitates output

voltage monitoring and sequencing. If set in shutdown

(EN = GND), the MIC33M656 typically draws 1.5 μA,

while the output is discharged through a 10??pull-down

(if the output discharge feature is enabled).

The MIC33M656 pinout is compatible with the

MIC33M650, so that applications can be easily

converted.

The 2.4V to 5.5V input voltage range, low shutdown and

quiescent currents make the MIC33M656 ideal for

single-cell Li-ion battery-powered applications. The 100

duty cycle capability provides low dropout operation,

extending operating range in portable systems.

The MIC33M656 is available in a thermally efficient,

53-Lead, 6 mm x 10 mm x 3 mm B1QFN package, with

an operating junction temperature range from -40°C to +125°C.

Features

? Input Voltage Range: 2.4V to 5.5V

? 6A Output Current

? Multiple Faults Indication through I2C

? I2C Programmable:

- Output voltage: 0.6V-1.28V, 5 mV resolution;

0.6V-3.84V, 10/20 mV resolution

- Slew rate: 0.2 ms/V-3.2 ms/V

- On time (switching frequency)

- High-side current limit: 3.5A-10A

- Enable delay: 0.2 ms-3 ms

- Output discharge when disabled (EN = GND)

? High Efficiency (up to 95)

? Ultra-Fast Transient Response

? ±1.5 Output Voltage Accuracy Over

Line/Load/Temperature Range

? Safe Start-up with Pre-Biased Output

? Typical 1.5 μA Shutdown Supply Current

? Low Dropout (100 Duty Cycle) Operation

? I2C Speed, Up to 3.4 MHz

? Latch-Off Thermal Shutdown Protection

? Latch-Off Current Limit Protection

? Meets CISPR32 Class B Emissions

? Power Good (PG) Open-Drain Output

? Package: 53-Lead, 6 mm x 10 mm B1QFN

Applications

? Solid-State Drives (SSD)

? FPGAs, DSP and Low-Voltage ASIC Power