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NCP100SNT1G
Sub 1.0 V Precision Adjustable Shunt Regulator
NCP100
Sub 1.0 V Precision
Adjustable Shunt Regulator
The NCP100 is a precision low voltage shunt regulator that is
programmable over a voltage range of 0.9 V to 6.0 V. This device
features a guaranteed reference accuracy of ±1.7% at 25°C and ±2.6%
over the entire temperature range of −40°C to 85°C. The NCP100
exhibits a sharp low current turn−on characteristic with a low dynamic
impedance of 0.20 � over an operating current range of 100 �A to
20 mA. These characteristics make this device an ideal replacement
for zener diodes in numerous application circuits that require a precise
low voltage reference. When combined with an optocoupler, the
NCP100 can be used as an error amplifier for controlling the feedback
loop in isolated low output voltage (2.3 V) switching power supplies.
This device is available in an economical space saving
TSOP−5 package.
Features Programmable Output Voltage Range of 0.9 V to 6.0 V Voltage Reference Tolerance of ±1.7% Sharp Low Current Turn−ON Characteristic Low Dynamic Output Impedance of 0.2 � from 100 �A to 20 mA Wide Operating Current Range of 80 �A to 20 mA Space Saving TSOP−5 Package Pb−Free Package is Available
Applications Reference for Single Cell Alkaline, NiCD and NiMH Applications Low Output Voltage (2.3 V) Switching Power Supply Error Amp Battery Powered Consumer Products Portable Test Equipment and Instrumentation
Cathode (K)
Reference
(R)
Anode (A)
Figure 1. Symbol Figure 2. Representative Block DiagramCathode (K)
Reference
(R)
Anode (A)
