LM2833ZSD/NOPB ,1.5MHz/3MHz 3.0A Step-Down DC-DC Switching Regulator 10-WSON -40 to 125FEATURES DESCRIPTIONThe LM2833 regulator is a monolithic, high frequency,2• Input Voltage Range of ..
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LM2833ZMY/NOPB-LM2833ZSD/NOPB
1.5MHz/3MHz 3.0A Step-Down DC-DC Switching Regulator
LM2833
www.ti.com SNVS505E–MAY 2008–REVISED APRIL 2013
LM2833 1.5MHz/3MHz 3.0A Step-Down DC-DC Switching Regulator
Checkfor Samples: LM2833
1FEATURES DESCRIPTIONThe LM2833 regulatorisa monolithic, high frequency,
Input Voltage Rangeof 3.0Vto 5.5V PWM step-down DC/DC converter availableina 10-
• Output Voltage Rangeof 0.6Vto 4.5V pin WSONor MSOP-PowerPAD package.It contains
Tiny MSOP-PowerPAD10or WSON-10 all the active functions to provide local DC/DC
Package conversion with fast transient response and accurate
regulationin the smallest possible PCB area. Witha
• 3.0A Steady-State Output Current minimum of external components, the LM2833is
• High Switching Frequencies easyto use. The abilityto drive 3.0A loads with an
1.5MHz (LM2833X) internal 56 mΩ PMOS switch using state-of-the-art
0.5µm BiCMOS technology resultsin the best power
– 3.0MHz (LM2833Z) density available. The world-class control circuitry
• Enable Pin allows on-times as low as 30ns, thus supporting
• 56mΩ PMOS Switch exceptionally high frequency conversion over the
entire 3Vto 5.5V input operating range downto the
• 0.6V, 2% Internal Voltage Reference Over Line minimum output voltageof 0.6V. Switching frequency
and Temperature is internally setto 1.5MHzor 3.0MHz, allowing the
• Internal Soft-Start useof extremely small surface mount inductors and
Internally Compensated Peak Current-Mode capacitors. Even though the operating frequencyis
Control high, efficiencies upto 93% are easyto achieve.
External shutdownis included, featuring an ultra-low
• Cycle-by-Cycle Current Limit and Thermal stand-by currentof 300nA. The LM2833 utilizes peak
Shutdown current-mode control and internal compensationto
• Frequency Foldback Protection provide high-performance regulation overa wide
Input Voltage UVLO (Under-Voltage Lockout) range of operating conditions. Additional features
include internal soft-start circuitry to reduce inrush
• Output Over-Voltage Protection current, cycle-by-cycle current limit, frequency
foldback, thermal shutdown, and output over-voltage
APPLICATIONS protection.
Multimedia Set Top Box Broadband Communications Core Powerin HDDs
