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Product Variant Information section
Product Specification Section
Pricing Section

Stock: 24,000

On Order: 0
Factory Stock:Factory Stock: 0
Factory Lead Time: 16 Weeks
Minimum Order: 4,000
Multiple Of: 4,000
Quantity Web Price
4,000+ $0.875
Total:

$3,500.00

USD
Attributes
Attributes Table
Topology Boost
Input Voltage 1V to 5V
Output Current-Max 600mA
Output Type Adjustable
Switching Frequency-Max 1.2MHz
Operating Temp Range -40°C to +85°C
Efficiency 94%
No. of Outputs 1
Quiescent Current 8.5µA
Storage Temperature Range -55°C to +150°C
Load Regulation 1mV
Moisture Sensitivity Level 1
Features and Applications

The NCP1421 Series are monolithic micropower high−frequency step−up switching converter IC specially designed for battery−operated hand−held electronic products up to 600 mA loading.

NCP1421 integrates Sync−Rect to improve efficiency and to eliminate the external Schottky Diode. High switching frequency (up to 1.2 MHz) allows for a low profile, small−sized inductor and output capacitor to be used. When the device is disabled, the internal conduction path from LX or BAT to OUT is fully blocked and the OUT pin is isolated from the battery. This True−Cutoff function reduces the shutdown current to typically only 50 nA. Ring−Killer is also integrated to eliminate the high−frequency ringing in discontinuous conduction mode. In addition to the above, Low−Battery Detector, Logic−Controlled Shutdown, Cycle−by−Cycle Current Limit and Thermal Shutdown provide value−added features for various battery−operated applications. With all these functions on, the quiescent supply current is typically only 8.5 µA. This device is available in the compact and low profile Micro8 package.

Key Features:

  • Pb−Free Package is Available
  • High Efficiency: 94% for 3.3 V Output at 200 mA from 2.5 V Input 88% for 3.3 V Output at 500 mA from 2.5 V Input
  • High Switching Frequency, up to 1.2 MHz (not hitting current limit)
  • Output Current up to 600 mA at VIN = 2.5 V and VOUT = 3.3 V
  • True−Cutoff Function Reduces Device Shutdown Current to typically 50 nA
  • Anti−Ringing Ring−Killer for Discontinuous Conduction Mode
  • High Accuracy Reference Output, 1.20 V ±1.5%, can Supply 2.5 mA Loading Current when VOUT > 3.3 V
  • Low Quiescent Current of 8.5 µA
  • Integrated Low−Battery Detector
  • Open Drain Low−Battery Detector Output
  • 1.0 V Startup at No Load Guaranteed
  • Output Voltage from 1.5 V to 5.0 V Adjustable
  • 1.5 A Cycle−by−Cycle Current Limit
  • Multi−function Logic−Controlled Shutdown Pin
  • On Chip Thermal Shutdown with Hysteresis

Applications:

  • Personal Digital Assistants (PDA)
  • Handheld Digital Audio Products
  • Camcorders and Digital Still Cameras
  • Hand−held Instruments
  • Conversion from one to two Alkaline, NiMH, NiCd Battery Cells to 3.0−5.0 V or one Lithium−ion cells to 5.0