LTC3700 - Constant Frequency Step-Down DC/DC Controller With LDO Regulator

The LTC3700 is a constant frequency current mode stepdown (buck) DC/DC controller with excellent AC and DC load and line regulation. The on-chip 150mA low dropout (LDO) linear Regulator CAN be powered from the buck controllers input supply, its own independent input supply or the buck Regulators output. The buck controller incorporates an undervoltage lockout feature that shuts down the controller when the input voltage falls below 2.1V.
The buck Regulator provides a 2.5% output voltage accuracy. It consumes only 210A of quiescent current in normal operation with the LDO consuming an additional 50A. In shutdown, a mere 10A (combined) is consumed.
For applications where efficiency is a prime consideration, the buck controller is configured for Burst Mode operation which enhances efficiency at low output current. To further maximize the life of a battery source, the external P-Channel MOSFET is turned on continuously in dropout (100% duty cycle). High constant operating frequency of 550kHz allows the use of a small external inductor. The LDO is protected by both current limit and thermal shutdown circuits.
The LTC3700 is available in a tiny 10-pin MSOP.
By Linear Technology Corporation
LTC3700 's PackagesLTC3700 's pdf datasheet
LTC3700EMS MSOP
LTC3700EMS-PBF MSOP
LTC3700EMS-TRPBF MSOP




LTC3700 Pinout, Pinouts
LTC3700 pinout,Pin out
This is one package pinout of LTC3700,If you need more pinouts please download LTC3700's pdf datasheet.

LTC3700 Application circuits
LTC3700 circuits
This is one application circuit of LTC3700,If you need more circuits,please download LTC3700's pdf datasheet.


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