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LTC1707IS8
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Category:Voltage regulator
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Product Name:High efficiency monolithic synchronous step-down switching regulator
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Manufacturers:LINEAR
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Production Batch Number:10+
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Encapsulation:SOP8
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Stock Status:There is stock
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Stock Quantity:9000
- Minimum order quantity: 1
- Details:
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LTC1707IS8
High efficiency monolithic synchronous step-down switching regulator
peculiarity
- 600mA Output Current (>/= 4V V)
- High efficiency: up to 96%
- The constant frequency is 350kHz and can be synchronized to 550kHz
- 2.85V to 8.5VVINrange
- The 0.8V feedback reference allows a low voltage output: 0.8V OUT
1.19V ± 1% reference output pin
Selectable Burst Mode ™ operation/Pulse Skipping Mode
Precision 2.7V undervoltage lockout
Excellent line current mode control and load transient response
Only 11μA of supply current is consumed in shutdown mode
Typical applications for LTC1707
The LTC™1707 is a high efficiency monolithic current mode synchronous buck regulator using a fixed frequency architecture.
The operating supply range is reduced from 8.5V to 2.85V, making it suitable for single and dual Li-Ion battery powered applications.
100% duty cycle provides low-dropout operation, extending the operating time of battery-powered systems.
The internally programmed switching frequency is 350kHz, allowing the use of small surface-mount inductors.
For noise-sensitive applications, it can be externally synchronized to 550kHz.
Burst Mode operation is suppressed during synchronization or when the SYNC/MODE pin is pulled low to prevent low-frequency ripple from interfering with the audio circuitry.
Internal synchronous MOSFET switches improve efficiency and eliminate the need for an external Schottky diode, saving component and board space.
Low output voltages down to 0.8V and 0.8V internal references are easily implemented.
The LTC1707 of the 8-lead SO package.IN
- No Schottky diode required
- 1.19V ± 1% reference output pin
- Selectable Burst Mode ™ operation/Pulse Skipping Mode
- Low dropout operation: 100% duty cycle
- Precision 2.7V undervoltage lockout
- Excellent line current mode control and load transient response
- Low quiescent current: 200μA
- Only 11μA of supply current is consumed in shutdown mode
- Available in 8-lead SO package
description
The LTC™1707 is a high efficiency monolithic current mode synchronous buck regulator using a fixed frequency architecture. The operating supply range is reduced from 8.5V to 2.85V, making it suitable for single and dual Li-Ion battery powered applications. Burst Mode operation provides high efficiency at low load currents. 100% duty cycle provides low-dropout operation, extending the operating time of battery-powered systems. The internally programmed switching frequency is 350kHz, allowing the use of small surface-mount inductors. For noise-sensitive applications, it can be externally synchronized to 550kHz. Burst Mode operation is suppressed during synchronization or when the SYNC/MODE pin is pulled low to prevent low-frequency ripple from interfering with the audio circuitry. Soft-start is provided by an external capacitor. Internal synchronous MOSFET switches improve efficiency and eliminate the need for an external Schottky diode, saving component and board space. Low output voltages down to 0.8V and 0.8V internal references are easily implemented. The LTC1707 of the 8-lead SO package.
apply
- Cellular
- Portable instrument
- Wireless modem
- RF communications
- Distributed power systems
- Single and dual core lithium
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