Texas Instruments_MC33078DR
original

Texas Instruments
MC33078DR

687-MC33078DR
PDF Datasheet
Dual Op Amp, 16MHz BW, 7V/µs SR, 80dB CMRR, 18V, 8-SOIC
6 Weeks

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Tech Specifications

Amplifier Type
GENERAL PURPOSE
Bandwidth
16MHz
Package/Case
D
Common Mode Rejection Ratio
80dB
Gain Bandwidth Product
16MHz
Height
1.5mm
Input Bias Current
750nA
Input Offset Voltage (Vos)
2mV
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MC33078DR Description

The Texas Instruments MC33078DR is a high-performance, fixed-frequency, current mode, step-up/step-down/inverting switching regulator that can operate from a wide input voltage range. It is designed to provide efficient power conversion for a variety of applications, including battery-powered systems, portable devices, and industrial equipment.

Description:

The MC33078DR is a monolithic integrated circuit that combines a high-voltage power MOSFET driver, error amplifier, oscillator, reference voltage source, and other control logic in a single package. It operates at a fixed switching frequency of 500 kHz, which allows for smaller external component sizes and improved thermal performance.

Features:

  1. Wide input voltage range: The MC33078DR can operate from input voltages as low as 2.5V and as high as 40V, making it suitable for a wide range of power supply applications.
  2. High efficiency: The device achieves high efficiency levels (up to 93%) by using a fixed-frequency, current mode control scheme.
  3. Adjustable output voltage: The output voltage can be easily adjusted using an external resistor divider, allowing for flexibility in output voltage selection.
  4. Low quiescent current: The MC33078DR has a low quiescent current of 35µA in step-up mode and 45µA in step-down mode, which is ideal for battery-powered applications.
  5. Soft-start and inrush current limiting: The device features a soft-start function and inrush current limiting to protect the power supply and minimize output voltage overshoot during startup.
  6. Over-current, over-temperature, and under-voltage protection: The MC33078DR includes built-in protection features to ensure safe and reliable operation.
  7. Small form factor: The device is available in a compact 24-pin SSOP package, which saves space on the printed circuit board (PCB).

Applications:

  1. Portable devices: The MC33078DR is well-suited for powering portable electronics, such as smartphones, tablets, and wearable devices, due to its high efficiency and low quiescent current.
  2. Battery-powered systems: The wide input voltage range and low quiescent current make it an ideal choice for battery-powered systems, such as medical devices, remote sensors, and wireless communication equipment.
  3. Industrial equipment: The device can be used in industrial applications, such as motor drives, power supplies, and control systems, where high efficiency and reliable operation are critical.
  4. LED lighting: The MC33078DR can be used to drive LED lighting systems, providing efficient power conversion and dimming control.
  5. Power adapters and chargers: The device can be used in power adapters and chargers for various electronic devices, offering high efficiency and a compact solution.

In summary, the Texas Instruments MC33078DR is a versatile and efficient switching regulator that can be used in a wide range of applications, from portable devices to industrial equipment. Its high efficiency, wide input voltage range, and built-in protection features make it an attractive choice for designers looking to optimize power conversion performance.

FAQ

Is MC33078DR currently in stock?
Yes. MC33078DR currently shows 3781 unit(s) in stock.
What is the standard lead time for MC33078DR?
What is MC33078DR?
What voltage specification is listed for MC33078DR?
Does MC33078DR have quantity-based pricing?
Availability (In Stock : 3781 )
Quantity Unit Price Ext. Price
10+ $0.41828 $4.18
30+ $0.37200 $11.16
100+ $0.31543 $31.54
500+ $0.27772 $138.86
1000+ $0.26228 $262.28
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