NCP1400ASN27T1 ,100mA, Fixed Frequency PWM Step-Up Micropower Switching RegulatorELECTRICAL CHARACTERISTICS (continued) (For all values T = 25°C, unless otherwise noted.)ACharacter ..
NCP1400ASN27T1 ,100mA, Fixed Frequency PWM Step-Up Micropower Switching RegulatorMaximum ratings applied to the device are individual stress limitvalues (not normal operating condi ..
NCP1400ASN30T1 ,100mA, Fixed Frequency PWM Step-Up Micropower Switching RegulatorFeatures3 4 GNDNC• Extremely Low Startup Voltage of 0.8 V(Top View)• Operation Down to Less than 0. ..
NCP1400ASN33T1 ,100mA, Fixed Frequency PWM Step-Up Micropower Switching RegulatorELECTRICAL CHARACTERISTICS (For all values T = 25°C, unless otherwise noted.)ACharacteristic Symbo ..
NCP1400ASN50T1 ,100mA, Fixed Frequency PWM Step-Up Micropower Switching RegulatorMAXIMUM RATINGSRating Symbol Value UnitPower Supply Voltage (Pin 2) V −0.3 to 6.0 VOUTÁÁÁÁÁÁÁÁÁÁÁÁÁ ..
NCP1400ASN50T1 ,100mA, Fixed Frequency PWM Step-Up Micropower Switching Regulatorequipment from one or two cell battery packs. These devices aredesigned to startup with a cell volt ..
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NCP1400ASN27T1-NCP1400ASN30T1-NCP1400ASN33T1-NCP1400ASN50T1
100mA, Fixed Frequency PWM Step-Up Micropower Switching Regulator
NCP1400A
100 mA, Fixed Frequency
PWM Step-Up Micropower
Switching Regulator
The NCP1400A series are micropower step−up DC to DC
converters that are specifically designed for powering portable
equipment from one or two cell battery packs. These devices are
designed to startup with a cell voltage of 0.8 V and operate down to
less than 0.2 V. With only four external components, this series allows
a simple means to implement highly efficient converters that are
capable of up to 100 mA of output current.
Each device consists of an on−chip fixed frequency oscillator, pulse
width modulation controller, phase compensated error amplifier that
ensures converter stability with discontinuous mode operation,
soft−start, voltage reference, driver, and power MOSFET switch with
current limit protection. Additionally, a chip enable feature is provided
to power down the converter for extended battery life.
The NCP1400A device series are available in the Thin SOT23−5
package with seven standard regulated output voltages. Additional
voltages that range from 1.8 V to 4.9 V in 100 mV steps can be
manufactured.
Features Extremely Low Startup Voltage of 0.8 V Operation Down to Less than 0.2 V Only Four External Components for Simple Highly Efficient
Converters Up to 100 mA Output Current Capability Fixed Frequency Pulse Width Modulation Operation Phase Compensated Error Amplifier for Stable Converter Operation Chip Enable Power Down Capability for Extended Battery Life Pb−Free Packages are Available
Typical Applications Cellular Telephones Pagers Personal Digital Assistants Electronic Games Digital Cameras Camcorders Handheld Instruments White LED Torch Light
