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Teilenummer | TCS9208 |
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Beschreibung | 1.2MHZ Step-up DC/DC Converter | |
Hersteller | TCS | |
Logo | ||
Gesamt 7 Seiten TCS9208
1.2MHZ Step-up DC/DC Converter in
GENERAL DESCRIPTION
The TCS9208 step-up switching regulator
generates an output voltage of up to 6V
from an input voltage as low as 1.6V. Ideal
for applications where space is limited, it
switches at 1.2MHz, allowing the use of
tiny, low cost and low profile external
components. Its internal 2A, 100mΩ
NMOS switch provides high efficiency even
at heavy load, while the constant frequency,
current mode architecture results in low,
predictable output noise that is easy to
filter. Internal frequency compensation is
designed to accommodate ceramic output
capacitors, further reducing noise. The
device features very low shutdown current
of 0.5uA.
The TCS9208 is available in the 6-lead
SOT-23 package.
FEATURES
• Internal 2A MOSFET Switch
• 1.2MHZ Switching Frequency
• Integrated Soft-Start
• Low 1.6V Vin Operation
• Low Rds(on) Switch :100mΩ at 5V Output
• Delivers 5V at 800mA from a 3.3V input
• Delivers 3V at 800mA from a 2.5V input
• Uses Small.Low Profile External Components
• Low profile(1mm):SOT-23(Thin SOT)package
APPLICATIONS
• White LED Driver Supply
• Local 3.3V or 5V supply
• Battery Back-up
Figure 1. Typical Application Circuit
Rev.1.0 Jan.20,2011 Page 1
TYPICAL PERFORMANCE
CHARACTERISTICS
Efficiency vs. Output Current
TCS9208
1.2MHZ Step-up DC/DC Converter in
IOUT(MAX) vs VIN(Vout=3.3V)
Startup waveform
(Vin=EN=1.8V Vout=3.3V)
Reference Voltage vs. Temperature
Startup through Enable Waveform
(Vin=1.8V EN=0->1.8V Vout=3.3V)
Rev.1.0 Jan.20,2011 Page 6
6 Page | ||
Seiten | Gesamt 7 Seiten | |
PDF Download | [ TCS9208 Schematic.PDF ] |
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