DocumentationDatasheet
Reliability Data
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Features
- Up to 92% Efficiency
- Generates 3.3V at 100mA from a Single AA Cell
- Low Start-Up Voltage: 0.85V
- VOUT Connected to VIN in Shutdown
- Internal Synchronous Rectifier
- 2.5V to 5V Output Range
- Automatic Burst Mode® Operation
- Logic Controlled Shutdown (<1µA)
- Antiringing Control Minimizes EMI
- Tiny External Components
- Low Profile (1mm) SOT-23 Package
Typical Application
Description
The LTC3400-1 is a synchronous, fixed frequency, stepup DC/DC converter delivering high efficiency in a 6-lead ThinSOT package. Capable of supplying 3.3V at 100mA from a single AA cell input, the device contains an internal NMOS switch and PMOS synchronous rectifier.
A switching frequency of 1.2MHz minimizes solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. The current mode PWM design is internally compensated, reducing external parts count. The LTC3400-1 features automatic shifting to power saving Burst Mode operation at light loads. In shutdown, VOUT and VIN are connected, which allows the input battery to be used for backup power. The LTC3400-1 features low shutdown current of under 1µA.
The LTC3400-1 is offered in the low profile (1mm)SOT-23 package.
US Patent Numbers 5,481,178; 6,580,258; 6,304,066; 6,127,815; 6,498,466; 6,611,131.
| Features | |
| LTC3400 | Burst Mode |
| LTC3400B | Burst Mode Disabled |
| LTC3400-1 | Connects Vin To Vout In Shutdown |
SOT-23
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC3400BES6#TRMPBF | SOT | 6 | E | $2.84 | $2.03 |
| LTC3400BES6#TRPBF | SOT | 6 | E | $2.84 | $2.01 |
| LTC3400ES6#PBF | SOT | 6 | E | $2.37 | |
| LTC3400ES6#TRMPBF | SOT | 6 | E | $2.37 | $2.03 |
| LTC3400ES6#TRPBF | SOT | 6 | E | $2.37 | $2.01 |
| LTC3400ES6-1#TRMPBF | SOT | 6 | E | $2.84 | $2.03 |
| LTC3400ES6-1#TRPBF | SOT | 6 | E | $2.84 | $2.01 |
| LTC3400ES6 | SOT | 6 | E | $4.74 | |
| LTC3400ES6#TR | SOT | 6 | E | $4.74 | $4.02 |
| LTC3400BES6 | SOT | 6 | E | $5.68 | |
| LTC3400BES6#TR | SOT | 6 | E | $5.68 | $4.02 |
| LTC3400ES6-1 | SOT | 6 | E | $5.68 | |
| LTC3400ES6-1#TR | SOT | 6 | E | $5.68 | $4.02 |
| LTC3400BES6#TRM | SOT | 6 | E | $5.68 | $4.06 |
| LTC3400ES6#TRM | SOT | 6 | E | $4.74 | $4.06 |
| LTC3400ES6-1#TRM | SOT | 6 | E | $5.68 | $4.06 |
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.