CS51411E
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CS51411E

Product Category: IC Chips
Manufacturer: ON
Description:
  datasheetCS51411E Datasheet
Package: DFN-18
Quantity: 3234 PCS
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level(MSL): 3(168 Hours)
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Manufacturer: ON
Product Category: IC Chips
Features, Applications

A, 260 kHz and 520 kHz, Low Voltage Buck Regulators with External Bias or Synchronization Capability


The CS5141X products are 1.5 A buck regulator ICs. These devices are fixed-frequency operating at 260 kHz and 520 kHz. The regulators use the V2TM control architecture to provide unmatched transient response, the best overall regulation and the simplest loop compensation for today's high-speed logic. These products accommodate input voltages from 40 V. The CS51411 and CS51413 contain synchronization circuitry. The CS51412 and CS51414 have the option of powering the controller from an external 6.0 V supply in order to improve efficiency, especially in high input voltage, light load conditions. The on-chip NPN transistor is capable of providing a minimum A of output current, and is biased by an external "boost" capacitor to ensure saturation, thus minimizing on-chip power dissipation. Protection circuitry includes thermal shutdown, cycle-by-cycle current limiting and frequency foldback. The CS51411 and CS51413 are functionally pin-compatible with the LT1375. The CS51412 and CS51414 are functionally pin-compatible with the LT1376.


Features

V2 Architecture Provides Ultrafast Transient Response, Improved

Regulation and Simplified Design 2.0% Error Amp Reference Voltage Tolerance Switch Frequency Decrease 4:1 in Short Circuit Conditions Reduces Short Circuit Power Dissipation BOOST Lead Allows "Bootstrapped" Operation to Maximize Efficiency Sync Function for Parallel Supply Operation or Noise Minimization Shutdown Lead Provides Power-Down Option 85 mA Quiescent Current During Power-Down Thermal Shutdown Soft-Start Pin-Compatible with LT1375 and LT1376 Pb-Free Packages are Available


5141x = Device Code A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb-Free Package


See detailed ordering and shipping information in the package dimensions section on page 18 of this data sheet.


BOOST VIN VSW SHDNB 8 VC VFB GND SYNC BOOST VIN Vsw VSW SHDNB NC VC VFB NC GND NC SYNC BOOST VIN Vsw VSW BIAS NC VC VFB NC GND NC SHDNB


SOIC-8 Package Pin 1 DFN18 Package Pin # 1 Pin Symbol BOOST Function The BOOST pin provides additional drive voltage to the on-chip NPN power transistor. The resulting decrease in switch on voltage increases efficiency. This pin is the main power input to the IC. This is the connection to the emitter of the on-chip NPN power transistor and serves as the switch output to the inductor. This pin may be subjected to negative voltages during switch off-time. A catch diode is required to clamp the pin voltage in normal operation. This node can stand -1.0 V for less than 50 ns during switch node flyback. The BIAS pin connects to the on-chip power rail and allows the IC to run most of its internal circuitry from the regulated output or another low voltage supply to improve efficiency. The BIAS pin is left floating if this feature is not used. This pin provides the synchronization input. 13 16 SYNC SHDNB The shutdown pin is active low and TTL compatible. The IC goes into sleep mode, drawing less than 85 mA when the pin voltage is pulled below 1.0 V. This pin should be left floating in normal position. Power return connection for the IC. The FB pin provides input to the inverting input of the error amplifier. If VFB is lower than 0.29 V, the oscillator frequency is divided by four, and current limit folds back to about 1 A. These features protect the IC under severe overcurrent or short circuit conditions. The VC pin provides a connection point to the output of the error amplifier and input to the PWM comparator. Driving of this pin should be avoided because on-chip test circuitry becomes active whenever current exceeding mA is forced into the IC. No Connection


Part Number CS51414E CS51414G Frequency 260 kHz 260 kHz 260 kHz 260 kHz 520 kHz 520 kHz 520 kHz 520 kHz Temperature Range to 70°C Bias/Sync Sync Bias Sync Bias


Rating Operating Junction Temperature Range, TJ Lead Temperature Soldering: Storage Temperature Range, TS ESD Damage Threshold (Human Body Model) Reflow: (SMD styles only) (Note 1) Value 150 230 peak +150 2.0 Unit °C kV


Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. 60 second maximum above 183°C.

Search Part number : "CS514" Included word is 15
Part Number Manufacturer Package Quantity Description
CS51411ED8 ON Semiconductor 8-SOIC (0.154", 3.90mm Width) 138 IC REG BUCK ADJ 1.5A 8SOIC
CS51412GD8G ON Semiconductor 8-SOIC (0.154", 3.90mm Width) 21683 IC REG BUCK ADJ 1.5A 8SOIC
CS51414ED8 ON Semiconductor 8-SOIC (0.154", 3.90mm Width) 3612 IC REG BUCK ADJ 1.5A 8SOIC
CS51414ED8G ON Semiconductor 8-SOIC (0.154", 3.90mm Width) 10511 IC REG BUCK ADJ 1.5A 8SOIC
CS51411ED8G ON Semiconductor 8-SOIC (0.154", 3.90mm Width) 33344 IC REG BUCK ADJ 1.5A 8SOIC
CS51412GDR8 ON Semiconductor 8-SOIC (0.154", 3.90mm Width) 166 IC REG BUCK ADJ 1.5A 8SOIC
CS51412GDR8G ON Semiconductor 8-SOIC (0.154", 3.90mm Width) 41148 IC REG BUCK ADJ 1.5A 8SOIC
CS51414EDR8 ON Semiconductor 8-SOIC (0.154", 3.90mm Width) 6108 IC REG BUCK ADJ 1.5A 8SOIC
CS51411EDG ON SOP-8 82
CS51414EDR8G ON SOP 48216 IC REG BUCK ADJ 1.5A 8SOIC
CS51411EDR2 ON SOP8 118
CS51413 ON SOP8 3540
CS51414EMNR2G ON Semiconductor 18-VFDFN Exposed Pad 2460 IC REG BUCK ADJ 1.5A 18DFN
CS51411EDR2G ON SOP8 101
CS51413E ON SOIC-8 1215
CS51411E RELATED PRODUCT PICTURE
left
  • CS51411ED8
  • CS51412GD8G
  • CS51414ED8
  • CS51414ED8G
  • CS51411ED8G
  • CS51412GDR8
  • CS51412GDR8G
  • CS51414EDR8
  • CS51411EDG
  • CS51414EDR8G
  • CS51411EDR2
  • CS51413
  • CS51414EMNR2G
  • CS51411EDR2G
  • CS51413E
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