|Number of Pins||
|Manufacturer||Analog Devices / Linear Technology|
|Manufacturer Part Number||LT3741IFE#PBF|
|Description||IC REG CTRLR BUCK PWM CM 20TSSOP|
The LT®3741 and LT3741-1 are fixed frequency synchronous step-down DC/DC controllers designed to accurately regulate the output current at up to 20A. The average currentmode controller will maintain inductor current regulation over a wide output voltage range of 0V to (VIN – 2V). The regulated current is set by an analog voltage on the CTRL pins and an external sense resistor. Due to its unique topology, the LT3741 is capable of sourcing and sinking current. If sinking current is not required, or for parallel applications, use the LT3741-1.
The regulated voltage and overvoltage protection are set with a voltage divider from the output to the FB pin. Soft-Start is provided to allow a gradual increase in the regulated current during startup. The switching frequency is programmable from 200kHz to 1MHz through an external resistor on the RT pin or through the use of the SYNC pin and an external clock signal.
Power Management ICs - PMIC
Analog Devices ADR4533ARZ0 out of 5(0)
The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ ADR4550 devices are high precision, low power, low noise voltage references featuring ±0.02% maximum initial error, excellent temperature stability, and low output noise. This family of voltage references uses an innovative core topology to achieve high accuracy while offering industry-leading temperature stability and noise performance. The low, thermally induced output voltage hysteresis and low long-term output voltage drift of the devices also improve system accuracy over time and temperature variations. A maximum operating current of 950 μA and a maximum low dropout voltage of 300 mV allow the devices to function very well in portable equipment.
The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ ADR4550 series of references are each provided in an 8-lead SOIC package and are available in a wide range of output voltages, all of which are specified over the extended industrial temperature range of −40°C to +125°C. The ADR4525W, available in an 8-lead SOIC package, is qualified for automotive applications.
- Maximum temperature coefficient (TCVOUT):
- 1 ppm/°C (C grade 0°C to +70°C)
- 2 ppm/°C (B grade −40°C to +125°C)
- Output noise (0.1 Hz to 10 Hz):
- 1 μV p-p at VOUT of 2.048 V typical
- Initial output voltage error:
- B grade: ±0.02% (maximum)
- Input voltage range: 3 V to 15V
- Operating temperature:
- A grade and B grade: −40°C to +125°C
- C grade: 0°C to +70°C
- Output current: +10 mA source/−10 mA sink
- Low quiescent current: 950 μA (maximum)
- Low dropout voltage: 300 mV at 2 mA (VOUT ≥ 3 V)
- 8-lead SOIC package
- Qualified for automotive applications
- Long-term drift: 51 ppm typical at 4500 hours
Power Management ICs - PMIC
Analog Devices LT6654AHS6-2.50 out of 5(0)
The LT®6654 is a family of small precision voltage references that offers high accuracy, low noise, low drift, low dropout and low power. The LT6654 operates from voltages up to 36V and is fully specified from –55°C to 125°C. A buffered output ensures ±10mA of output drive with low output impedance and precise load regulation. These features, in combination, make the
LT6654 ideal for portable equipment, industrial sensing and control, and automotive applications. The LT6654 was designed with advanced manufacturing techniques and curvature compensation to provide 10ppm/°C temperature drift and 0.05% initial accuracy. Low thermal hysteresis ensures high accuracy and 1.6ppmP-P noise minimizes measurement uncertainty. Since the LT6654 can also sink current, it can operate as a low power negative voltage reference with the same precision as a positive reference.
The LT6654 references are offered in 6-lead SOT-23 package and an 8-lead LS8 package. The LS8 is a 5mm × 5mm surface mount hermetic package that provides outstanding stability.SKU: W022312