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Documents LM2830, LM2830-Q1
SNVS454E – AUGUST 2006 – REVISED DECEMBER 2014 LM2830/-Q1 High-Frequency 1.0-A Load Step-Down DC-DC Regulator
1 Features 3 Description The LM2830 regulator is a monolithic, highfrequency, PWM step-down DC-DC converter in a 5pin SOT-23 and a 6-Pin WSON package. The device
provides all the active functions to provide local DCDC conversion with fast transient response and
accurate regulation in the smallest possible PCB
area. With a minimum of external components, the
LM2830 regulator is easy to use. The ability to drive
1.0-A loads with an internal 130-mΩ PMOS switch
using state-of-the-art 0.5-Вµm BiCMOS technology
results in the best power density available. The worldclass control circuitry allows on-times as low as 30
ns, thus supporting exceptionally high frequency
conversion over the entire 3-V to 5.5-V input
operating range down to the minimum output voltage
of 0.6 V. Switching frequency is internally set to 1.6
MHz, or 3.0 MHz, allowing the use of extremely small
surface-mount inductors and chip capacitors. Even
though the operating frequency is high, efficiencies
up to 93% are easy to achieve. External shutdown is …
