The NCP690/ NCP691 /NCP692 devices are designed to be Very Low Dropout (LDO) 1 Amp Linear Voltage regulators. This new CMOS VLDO family provides 1A of output current in either fixed voltage options or an adjustable output voltage from 5.0V down to 1.25V. The devices are designed for space constrained and portable battery powered applications and offer many important features such as high PSRR, low Quiescent and Ground current consumption, low noise operation and short circuit and thermal protection. They offer enhanced ESD protection compared to standard CMOS LDOs and are designed to be used with low cost ceramic capacitors. The NCP691 includes an Enable low function, the NCP692 an enable high, and all three products are packaged in the 6-Lead DFN3x3 package.
特長
利点
Output Voltage Options: Adjustable, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5.0 V - Contact Factory for Other Voltage Options
Available in the most popular voltage options. Others may be available on request.
Current Limit Protection
Leads to more robust products
Thermal Shutdown Protection
Suitable for use in harsh environments
Typical Noise Voltage of 15 Vrms without a Bypass Capacitor
Suitable for audio and other electrical noise sensitive applications
Input Voltage down to 1.5V
Suitable for lower voltage input rails
Typical Dropout Voltage of 190 mV at 1 A (Vout = 2.5 V, TJ = 25C)
Suitable for lower voltage input rails and battery powered applications
Active Low Enable Pin (NCP691 device) Active High Enable Pin (NCP692 device)
Power saving modes
Enhanced ESD: 4 kV and 400 V
Less inclined to damage during board assembly compared to standard CMOS devices.
Active Output Discharge
Faster response time to shutdown and less chance of damaging reverse current flows
Guaranteed 1 A Output Current
2% Output Voltage Tolerance over All Operating Conditions (fixed output options)
Adjustable Output by External Resistors from 5.0 V down to 1.25 V
1.5% Output Voltage Tolerance over All Operating Conditions (Adjustable)
アプリケーション
最終製品
DSP, FPGA, Microprocessor Power Supplies
SMPS Post-Regulator
Modem Banks, Routers, Telecom Boards, Computer and game box accessories
Car entertainment systems, Battery Powered Applications