JBL SB 400 Service Manual ▷ View online
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SB 400 Service Manual
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SB 400 Service Manual
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SB 400 Service Manual
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BT1611SK
1 / 9
V2.1
1.2MHz 1A Synchronous Step Down Converter
Features
Applications
•
High Efficiency – Up to 93%
• Very Low Quiescent Current of 24uA
•
Guaranteed 1A Output Current
• 1.2MHz Constant Frequency Operation
• Adjustable Output Voltages From 0.6V to VIN
• Fixed Output Voltage Options Available
• 100% Duty Cycle Low-Dropout Operation
• 0.1uA Shutdown Current
• Tiny SOT23-5L Package
• Blue Tooth Headsets
• Portable Audio Players
• Mobile Phones
• Wireless and DSL Modems
• Digital Cameras
• Portable Instruments
General Description
The BT1611SK is a fixed-frequency current-modes Synchronous PWM step down converter that is capable of delivering 1A of
output current while achieving peak efficiency of 93%.Under light load conditions, the BT1611SK operates in a proprietary pulse
skipping mode that consumes just 24uA of supply current, maximizing battery life in portable applications. The BT1611SK
operates with a fixed frequency of 1.2MHz,
minimizing noise in noise-sensitive applications and allowing the use of small external
components. The BT1611SK is an ideal solution for applications powered by Li-lon batteries or other portable applications that
require small board space.
The BT1611SK is available in a variety of fixed output voltage options, 1.5V,1.8V, 2.5V and is also available in an adjustable
output voltage version capable of generating output voltage version from 0.6V to VIN. The BT1611SK is available in the tiny 5-pin
SOT23-5L package.
Pin Configurations
SOT23-5L
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SB 400 Service Manual
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