The LM317AEMP/NOPB is an adjustable 3-terminal positive Voltage Regulator is capable of supplying in excess of 1.5A over a 1.2 to 37V output range. It is exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulations are better than standard fixed regulators. In addition to higher performance than fixed regulators, the LM317AEMP/NOPB series offers full overload protection available only in IC’s. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.

• Specified 1% Output Voltage Tolerance
• Specified Maximum 0.01%/V Line Regulation
• Specified 1.5A Output Current
• Adjustable Output Down to 1.2V
• Current Limit Constant with Temperature
• P+ Product Enhancement Tested
• 80dB Ripple Rejection
• Output is Short-circuit Protected
• Green Product, No Sb/Br

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

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.