DocumentationDatasheet
Reliability Data
LT Journal
Press Release
- 60V Input, Low Quiescent Current Step-Down Controller Features 150°C Maximum Junction Temperature
- 60V Input, Low Quiescent Current Step-Down Controller Operates from -55°C to 125°C
- Wide Input Voltage (4V-60V), Step-Down Controller Draws Only 40uA
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Features
- Wide Input Range: 4V to 60V
- Current Mode Constant Frequency PWM
- Very Low Dropout Operation: 100% Duty Cycle
- Programmable Switching Frequency:
200kHz to 600kHz - Selectable High Efficient Burst Mode® Operation:
40µA Quiescent Current - Easy Synchronization
- 8V, 2A Gate Drive (VCC > 10V) for Industrial High Voltage P-Channel MOSFET
- Programmable Soft-Start
- Programmable Current Limit
- Available in a Small 10-Pin Thermally Enhanced MSE Package
Typical Application
Description
The LTC3824 is a step-down DC/DC controller designed to drive an external P-channel MOSFET. With a wide input range of 4V to 60V and a high voltage gate driver, the LTC3824 is suitable for many industrial and automotive high power applications. Constant frequency current mode operation provides excellent performance.
The LTC3824 can be configured for Burst Mode operation. Burst Mode operation enhances low current efficiency (only 40µA quiescent current) and extends battery run time. The switching frequency can be programmed up to 600kHz and is easily synchronizable.
Other features include current limit, soft start, micropower shutdown, and Burst Mode disable.
The LTC3824 is available in a 10-lead MSE power package.
MS-10E
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC3824EMSE#PBF | MSOP | 10 | E | $2.78 | $1.95 |
| LTC3824EMSE#TRPBF | MSOP | 10 | E | $2.01 | |
| LTC3824HMSE#PBF | MSOP | 10 | H | $3.64 | $2.55 |
| LTC3824HMSE#TRPBF | MSOP | 10 | H | $2.61 | |
| LTC3824IMSE#PBF | MSOP | 10 | I | $3.34 | $2.34 |
| LTC3824IMSE#TRPBF | MSOP | 10 | I | $2.40 | |
| LTC3824MPMSE | MSOP | 10 | MP | $4.96 | $3.47 |
| LTC3824MPMSE#PBF | MSOP | 10 | MP | $4.96 | $3.47 |
| LTC3824MPMSE#TR | MSOP | 10 | MP | $3.53 | |
| LTC3824MPMSE#TRPBF | MSOP | 10 | MP | $3.53 | |
| LTC3824EMSE | MSOP | 10 | E | $5.56 | $3.90 |
| LTC3824EMSE#TR | MSOP | 10 | E | $4.02 | |
| LTC3824IMSE | MSOP | 10 | I | $6.68 | $4.68 |
| LTC3824IMSE#TR | MSOP | 10 | I | $4.80 |
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.
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC960A | LTC3824EMSE Demo Board | 5.5V ≤ Vin ≤ 60V, Vout: 5V/2A | $100.00 |