Microchip PWM Controller, 1 MHz 75 V 32-Pin, VQFN

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Subtotal 50 units (supplied on a continuous strip)*

$189.75

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$208.70

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50 - 98$3.795
100 - 248$3.49
250 - 998$3.42
1000 +$3.345

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Packaging Options:
RS Stock No.:
249-2462P
Mfr. Part No.:
MIC2133YML-TR
Brand:
Microchip
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Brand

Microchip

Product Type

PWM Controller

Maximum Switching Frequency

1MHz

Start-up Supply Current

0.0017mA

Output Voltage

28 V

Supply Current

8mA

Mount Type

Surface

Minimum Supply Voltage

8V

Package Type

VQFN

Pin Count

32

Maximum Supply Voltage

75V

Topology

Buck

Maximum Duty Cycle

50%

Minimum Operating Temperature

-40°C

Maximum Operating Temperature

125°C

Standards/Approvals

RoHS

Width

5 mm

Length

5mm

Series

MIC2133

Height

0.9mm

Automotive Standard

AEC-Q100

The Microchip constant on-time, dual phase, synchronous buck controller featuring a unique adaptive on-time control architecture with HyperLight Load® and phase shedding features enabled. It operates over an input supply range from 4.5V to 36V and can be used to supply up to 50A of output current. The output voltage is adjustable down to 0.6V with an ensured accuracy of ±1%.

0.6V internal reference with ±1% accuracy

Novel ripple injection method to allow greater than 50% duty cycle operation

Secondary LDO to improve system efficiency

Droop feature to support adaptive voltage positioning (AVP) for improved load transient response

Product Features


Input Voltage Range: 4.5V to 75V

Input Down to 2V when VDD = 5V from External Supply

Adjustable Output Voltage from 0.6V to 28V

0.6V Internal Reference with ±1% Accuracy

±0.5% Reference Accuracy for -40°C to 105°C

HyperLight Load® and Automatic Phase Shedding

100 kHz to 1 MHz Switching Frequency per Phase

High-Voltage Internal 5V LDO for Single-Supply Operation

Droop Feature to Support Adaptive Voltage Positioning (AVP)

Programmable Current Limit and Hiccup Mode Short-Circuit Protection

Thermal Shutdown with Hysteresis

-40°C to +125°C Junction Temperature Range

Programmable Current Limit and Hiccup Mode Short-Circuit Protection

Remote Sense Amplifier for Tight Output Regulation

Supports Start-up to Pre-Bias Output

External Programmable Soft Start to Reduce Inrush Current

Accurate Current Balancing Between Phases

Compact Size 5 mm x 5 mm 32-Pin VQFN Package

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