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Description:

The MIC2133YML dual phase synchronous step-down controller is a constant on-time controller with a unique adaptive on-time control architecture. The device supports HyperLight Load and phase cutting functions. The MIC2133 operates in the input supply voltage range from 8V to 75V. The output voltage can be adjusted to 0.6V, and the accuracy at the FBS pin is guaranteed to be ±1%. The device has a programmable switching frequency range of 100 KHZ to 1MHz. The HYPER SPEED CONTROL® architecture supports ultra-fast transient responses under moderate to high load conditions. Soft start can also be externally programmed via capacitors for safe start with heavy loads.

Features

Input voltage range: 8V to 75V

When external power supply VDD=5V, input as low as 2V

Adjustable output voltage range: 0.6V to 28V

Adaptive constant on-time control

High delTA-V operation

Stability of Any Capacitor™

0.6V internal reference, accuracy of ±1%

Ripple injection from the third node supports more than 50% duty cycle

HyperLight Load® and automatic phase cutting

Ability to connect to external MCUS

Accurate interphase current equalization

Precise 180° phase output

Switching frequency per phase: 100kHz to 1MHz

High voltage internal 5V LDO for single power operation

Secondary LDO can improve system efficiency

Supports pre-biased output startup

Remote detection amplifier for accurate output voltage regulation

Voltage drop features support adaptive voltage positioning (AVP) for improved load transient response

Precision enable enables low standby current

Externally programmable soft start to reduce inrush current

Non-destructive RDSON current detection, using NTC temperature compensation or resistor detection method

Programmable current limiting and intermittent mode short circuit protection

Thermal shutdown with hysteresis

Junction temperature range: -40°C to +125°C

Compact size 5mm x 5mm 32-pin VQFN package

AEC-Q100 compliant (VAO suffix)

Typical application

• Distributed power system

• Communication/network infrastructure

• Printers, scanners, graphics cards and video cards

• FPGA, CPU, memory, GPU core power supply

• Car POL

(Acquisition, sale) Microchip MIC2133YML 75V, dual phase synchronous buck PWM controller 32VQFN.

If necessary, please contact Mr. Chen:

Email: sales@hkmjd.com

Company website: www.hkmjd.com