GPM9081
1.2 MHz Step-up DC/DC Converters
General Description
The GPM9081 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 GPM9081 is available in SOT-23-6
package.
Features
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Internal 2A MOSFET Switch
1.2MHZ Switching Frequency
Integrated Soft-Start
Low 1.6V Vin Operation
Low
R
ds
(
on
)
Switch :100mΩ at 5V Output
Delivers 5V at 800mA from a 3.3V input
Delivers 3V at 800mA from a 2.5V input
Cost effective for using smaller devices
Low profile(1mm):SOT-23-6 package
White LED Driver Supply
Local 3.3V or 5V supply
Battery Back-up
Application
Figure 1 Typical Application Circuit
ONE THREE SIX ZERO ZERO TWO FIVE NINE SEVEN DOUBLE NINE,MR.CHEN
1
CONSONANCE [ 上海如韵 ]
