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LTC3810-5

Features: ` High Voltage Operation: Up to 60V` Large 1 Gate Drivers` No Current Sense Resistor Required` Dual N-Channel MOSFET Synchronous Drive` Extremely Fast Transient Response` ±0.5% 0.8V Voltage Reference` Programmable Output Voltage Tracking/Soft-Start` Generates 5.5V Driver Supply from Inpu...

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SeekIC No. : 004402363 Detail

LTC3810-5: Features: ` High Voltage Operation: Up to 60V` Large 1 Gate Drivers` No Current Sense Resistor Required` Dual N-Channel MOSFET Synchronous Drive` Extremely Fast Transient Response` ±0.5% 0.8V Voltag...

LTC3810-5 Data Sheet

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Part Number:
LTC3810-5
Supply Ability:
5000

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  • 1~5000
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  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` High Voltage Operation: Up to 60V
` Large 1 Gate Drivers
` No Current Sense Resistor Required
` Dual N-Channel MOSFET Synchronous Drive
` Extremely Fast Transient Response
` ±0.5% 0.8V Voltage Reference
` Programmable Output Voltage Tracking/Soft-Start
` Generates 5.5V Driver Supply from Input Supply
` Synchronizable to External Clock
` Selectable Pulse Skip Mode Operation
` Power Good Output Voltage Monitor
` Adjustable On-Time/Frequency: tON(MIN) < 100ns
` Adjustable Cycle-by-Cycle Current Limit
` Programmable Undervoltage Lockout
` Output Overvoltage Protection
` Thermally Enhanced 32-Pin QFN Package

The above info is from (www.seekic.com)


Application

· 48V Telecom and Base Station Power Supplies
· Networking Equipment, Servers
· Automotive and Industrial Control Systems


Pinout

Connection Diagram


Specifications

Supply Voltages
INTVCC, DRVCC ....................................0.3V to 14V
(DRVCC BGRTN), (BOOST SW) ..... 0.3V to 14V
BOOST (Continuous) ............................0.3V to 85V
BOOST (400ms) ................................0.3V to 95V
BGRTN ..................................................... 5V to 0V
EXTVCC ................................................0.3V to 15V
(EXTVCC INTVCC) ..............................12V to 12V
(NDRV INTVCC) Voltage ................... 0.3V to 10V
SW, SENSE+ Voltage (Continuous) ........ 1V to 70V
SW, SENSE+ Voltage (400ms) .................1V to 80V
ION Voltage (Continuous) ....................0.3V to 70V
ION Voltage (400ms) ...........................0.3V to 80V
SS/TRACK Voltage ..................................0.3V to 5V
PGOOD Voltage .....................................0.3V to 7V
VRNG, VON, MODE/SYNC, SHDN,
UVIN Voltages ......................................0.3V to 14V
PLL/LPF, FB Voltages ...........................0.3V to 2.7V
TG, BG, INTVCC, EXTVCC RMS Currents ..............50mA
Operating Temperature Range (Note 2)
LTC3810E-5 ......................................... 40 to 85
LTC3810I-5 ........................................ 40 to 125
Junction Temperature (Notes 3, 7)..................... 125
Storage Temperature Range ...............65 to 125

Edited by (www.seekic.com) ,the biggest IC PDF and datasheet download site.


Description

The LTC®3810-5 is a synchronous step-down switching regulator controller that can directly step-down voltages from up to 60V, making it ideal for telecom and automotive applications. The LTC3810-5 uses a constant on-time valley current control architecture to deliver very low duty cycles with accurate cycle-by-cycle current limit, without requiring a sense resistor.

A precise internal reference provides 0.5% DC accuracy. A high bandwidth (25MHz) error amplifi er provides very fast line and load transient response. Large 1 gate drivers allow the LTC3810-5 to drive multiple MOSFETs for higher current applications. The operating frequency is selected by an external resistor and is compensated for variations in VIN and can also be synchronized to an external clock for switching-noise sensitive applications. A shutdown pin allows the LTC3810-5 to be turned off, reducing the supply current to 240A.

Integrated bias control generates gate drive power from the input supply during start-up or when an output shortcircuit occurs, with the addition of a small external SOT23 MOSFET. When in regulation, power is derived from the output for higher effi ciency.



The above info is from (www.seekic.com)


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