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LINEAR TECHNOLOGY  LTC3409EDD#PBF  DC-DC Switching Buck Step Down Regulator, Adjustable, 1.6V-5.5Vin, 620mV-5.5Vout, 0.6Aout, DFN-8

LINEAR TECHNOLOGY LTC3409EDD#PBF
Manufacturer Part No:
LTC3409EDD#PBF
Order Code:
2293107
Technical Datasheet:
See all Technical Docs

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Product Overview

The LTC3409EDD#PBF is a high-efficiency monolithic synchronous Buck Regulator using a constant frequency and current-mode architecture. The output voltage is adjusted via an external resistor divider. Fixed switching frequency of 1.7 and 2.6MHz is supported. Alternatively, an internal PLL will synchronize to an external clock in the frequency range of 1 to 3MHz. This range of switching frequencies allows the use of small surface mount inductors and capacitors, including ceramics. Supply current during Burst Mode® operation is only 65µA dropping to <1µA in shutdown. The 1.6 to 5.5V input voltage range makes the LTC3409 ideally suited for single cell Li-ion, Li-metal and 2-cell alkaline, NiCd or NiMH battery-powered applications. 100% duty cycle capability provides low dropout operation, extending battery life in portable systems. Burst Mode® operation can be user-enabled, increasing efficiency at light loads, further extending battery life.
  • Internal soft-start
  • No Schottky diode required
  • Stable with ceramic capacitors
  • Current-mode operation for excellent line and load transient response
  • Over-temperature protection
  • Internal oscillator can be synchronizable to an external clock, 1 to 3MHz range
  • Up to 95% high efficiency
  • 0.613V Reference voltage

Product Information

Topology:
Synchronous Buck (Step Down)
Input Voltage Min:
1.6V
Input Voltage Max:
5.5V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
DFN
No. of Pins:
8Pins
Output Current:
600mA
Output Voltage Min:
620mV
Output Voltage Max:
5.5V
Switching Frequency:
3MHz
Operating Temperature Max:
85°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Consumer Electronics
  • Portable Devices

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000157