LTC3614 - 4A, 4MHz Monolithic Synchronous Step-Down DC/DC Converter

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LTC3414 - 4A, 4MHz, Monolithic Synchronous Step-Down Regulator

Features

  • Click Here For LTC3414 Evaluation Kits
  • High Efficiency: Up to 95%
  • 4A Output Current
  • Low Quiescent Current: 64µA
  • Low RDS(ON) Internal Switch: 67 milliOhm
  • Programmable Frequency: 300KHz to 4MHz
  • 2.25V to 5.5V Input Voltage Range
  • ±2% Output Voltage Accuracy
  • 0.8V Reference Allows Low Output Voltage
  • Selectable Forced Continuous/Burst Mode®operation with Adjustable Burst Clamp
  • Synchronizable Switching Frequency
  • Low Dropout Operation: 100% Duty Cycle
  • Power Good Output Voltage Monitor
  • Overtemperature Protected
  • Available in 20-Lead Exposed TSSOP Package

Typical Application

LTC3414
LTC3414
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Description

The LTC3414 is a high efficiency monolithic synchronous, step-down DC/DC converter utilizing a constant frequency, current mode architecture. It operates from an input voltage range of 2.25V to 5.5V and provides a regulated output voltage from 0.8V to 5V while delivering up to 4A of output current. The internal synchronous power switch with 67milliOhm on-resistance increases efficiency and eliminates the need for an external Schottky diode. Switching frequency is set by an external resistor or can be synchronized to an external clock. 100% duty cycle provides low dropout operation extending battery life in portable systems. OPTI-LOOP® compensation allows the transient response to be optimized over a wide range of loads and output capacitors.

The LTC3414 can be configured for either Burst Mode operation or forced continuous operation. Forced continuous operation reduces noise and RF interference while Burst Mode operation provides high efficiency by reducing gate charge losses at light loads. In Burst Mode operation, external control of the burst clamp level allows the output voltage ripple to be adjusted according to the requirements of the application.

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Packaging

TSSOP-20E

LTC3414
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Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTC3414EFE TSSOP 20 E $6.07 $4.25 View
LTC3414EFE#PBF TSSOP 20 E $6.07 $4.25 View
LTC3414EFE#TR TSSOP 20 E   $4.31 View
LTC3414EFE#TRPBF TSSOP 20 E   $4.31 View
LTC3414IFE TSSOP 20 I $6.50 $4.55 View
LTC3414IFE#PBF TSSOP 20 I $6.50 $4.55 View
LTC3414IFE#TR TSSOP 20 I   $4.61 View
LTC3414IFE#TRPBF TSSOP 20 I   $4.61 View
LTC3414MPFE TSSOP 20 MP $11.76 $8.23 View
LTC3414MPFE#PBF TSSOP 20 MP $11.76 $8.23 View
LTC3414MPFE#TR TSSOP 20 MP   $8.29 View
LTC3414MPFE#TRPBF TSSOP 20 MP   $8.29 View
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Evaluation Kits

Part Number Description Price
DC556A LTC3414EFE | 4A Monolithic, Sync. Step-Down Regulator, 2.5 to 5.5Vin, Jumper selectable 1.8, 2.5, 3.3Vout @ 4A $125.00
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Applications

  • Point-of-Load Regulation
  • Notebook Computers
  • Portable Instruments
  • Distributed Power Systems
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Simulate

To simulate selected Linear Technology products, please download LTSpice / SwitcherCAD III. This powerful schematic capture and simulation tool includes macro models for 80% of Linear Technology's switching regulators, over 200 op amp models, as well as resistors, transistors and MOSFET models.

For other simulation tools, visit our Design Simulation and Device Models page.

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