LTC3788EUH, LTC37A-262, LTC3801 Selling Leads, Datasheet
MFG:LT Package Cooled:QFN D/C:09+
LTC3788EUH, LTC37A-262, LTC3801 Datasheet download
Part Number: LTC3788EUH
MFG: LT
Package Cooled: QFN
D/C: 09+
LTC3788EUH, LTC37A-262, LTC3801
- Table of contents:
Info of LTC3788EUH
Info of LTC37A-262
Info of LTC3801
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About LTC0157
PDF/DataSheet Download
Datasheet: LTC0157
File Size: 163926 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About LTC0157
PDF/DataSheet Download
Datasheet: LTC0157
File Size: 163926 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About LTC3801
PDF/DataSheet Download
Datasheet: LTC3801
File Size: 243451 KB
Manufacturer: linear
Download : Click here to Download
LTC3801 General Description
The LTC®3801/LTC3801B are constant frequency current mode step-down DC/DC controllers in a low profile (1mm max) 6-lead SOT-23 (ThinSOTTM) package. The parts provide excellent AC and DC load and line regulation with ±1.5% output voltage accuracy. The LTC3801 consumes only 195mA of quiescent current in normal operation, dropping to 16mA under no-load conditions.
The LTC3801/LTC3801B incorporate an undervoltage lockout feature that shuts down the device when the input voltage falls below 2.2V. The LTC3801 automatically switches into Burst Mode operation at light loads which enhances efficiency at low output current. In the LTC3801B, Burst Mode operation is disabled for lower output ripple at light loads.
To further maximize the life of a battery source, the external P-channel MOSFET is turned on continuously in dropout (100% duty cycle). High switching frequency of 550kHz allows the use of a small inductor.
LTC3801 Maximum Ratings
Input Supply Voltage (VIN).......................... 0.3V to 10V
SENSE, PGATE Voltages .............. 0.3V to (VIN + 0.3V)
VFB, ITH/RUN Voltages .............................. 0.3V to 2.4V
PGATE Peak Output Current (<10s) ........................... 1A
Operating Temperature Range (Note 2) .. . 40 to 85
Junction Temperature (Note 3) ............................... 150
Storage Temperature Range .................. .65 to 150
Lead Temperature (Soldering, 10 sec)..................... 300
SENSE, PGATE Voltages .............. 0.3V to (VIN + 0.3V)
VFB, ITH/RUN Voltages .............................. 0.3V to 2.4V
PGATE Peak Output Current (<10s) ........................... 1A
Operating Temperature Range (Note 2) .. . 40 to 85
Junction Temperature (Note 3) ............................... 150
Storage Temperature Range .................. .65 to 150
Lead Temperature (Soldering, 10 sec)..................... 300
LTC3801 Features
` High Efficiency: Up to 94%
` Very Low No-Load Quiescent Current: Only 16A (LTC3801)
` High Output Currents Easily Achieved
` Internal Soft-Start
`Wide VIN Range: 2.4V to 9.8V
`Low Dropout: 100% Duty Cycle
` Constant Frequency 550kHz Operation
` Burst Mode® Operation for High Efficiency at Light Loads (LTC3801)
` Burst Mode Operation Disabled for Lower Output Ripple at Light Loads (LTC3801B)
` Output Voltage as Low as 0.8V
` ±1.5% Voltage Reference Accuracy
`Current Mode Operation for Excellent Line and Load Transient Response
`Only 6mA Supply Current in Shutdown (LTC3801)
` Low Profile (1mm) SOT-23 Package
` Very Low No-Load Quiescent Current: Only 16A (LTC3801)
` High Output Currents Easily Achieved
` Internal Soft-Start
`Wide VIN Range: 2.4V to 9.8V
`Low Dropout: 100% Duty Cycle
` Constant Frequency 550kHz Operation
` Burst Mode® Operation for High Efficiency at Light Loads (LTC3801)
` Burst Mode Operation Disabled for Lower Output Ripple at Light Loads (LTC3801B)
` Output Voltage as Low as 0.8V
` ±1.5% Voltage Reference Accuracy
`Current Mode Operation for Excellent Line and Load Transient Response
`Only 6mA Supply Current in Shutdown (LTC3801)
` Low Profile (1mm) SOT-23 Package
LTC3801 Typical Application
· 1- or 2-Cell Li-Ion Battery-Powered Applications
· Wireless Devices
· Portable Computers
· Distributed Power Systems
· Wireless Devices
· Portable Computers
· Distributed Power Systems
LTC3801 Connection Diagram
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