High Switching Frequencies 1.6MHz (LM2832X) 0.55MHz (LM2832Y) 3.0MHz (LM2832Z)
150m PMOS switch
0.6V, 2% Internal Voltage Reference
Internal soft-start
Current mode, PWM operation
Thermal Shutdown
Over voltage protection
Description
The LM2832 regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 6 Pin LLP and a 8 Pin eMSOP package. It provides all the active functions to provide local DC/DC conversion with fast transient response and accurate regulation in the smallest possible PCB area. With a minimum of external components, the LM2832 is easy to use. The ability to drive 2.0A loads with an internal 150 m PMOS switch using state-of-the-art 0.5 µm BiCMOS technology results in the best power density available. The world-class control circuitry allows on-times as low as 30ns, thus supporting exceptionally high frequency conversion over the entire 3V to 5.5V input operating range down to the minimum output voltage of 0.6V. Switching frequency is internally set to 550 kHz, 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 included, featuring an ultra-low stand-by current of 30 nA. The LM2832 utilizes current-mode control and internal compensation to provide high-performance regulation over a wide range of operating conditions. Additional features include internal soft-start circuitry to reduce inrush current, pulse-by-pulse current limit, thermal shutdown, and output over-voltage protection.
LM2832 High Frequency (3 MHz) 2.0A Load - Step-Down DC-DC Regulator
Features:
Input voltage range of 3.0V to 5.5V
Output voltage range of 0.6V to 4.5V
2.0A output current
High Switching Frequencies:
1.6MHz (LM2832X)
0.55MHz (LM2832Y)
3.0MHz (LM2832Z)
150mΩ PMOS switch
0.6V, 2% Internal VOltage Reference
Internal soft-start
Current mode, PWM operation
Thermal Shutdown
Over voltage protection
Applications:
Local 5V to Vcore Step-Down Converters
Core Power in HDDs
Set-Top Boxes
USB Powered Devices
DSL Modems
Contents:
A fully assembledLM2832ZSD evaluation board
LM2832 datasheet
LM2832 evaluation board appnote
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(CSP-9-111C1)
and Banned Substances and Materials of Interest Specification
(CSP-9-111S2)
for regulatory environmental compliance. Details may be found at:
www.national.com/en/packaging/greennopb.html.
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Lead Free product status is available through the search tool located
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Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR.
The Long Term Failure Rates were calculated
at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress
temperature of 150°C to an application temperature of 55°C.
For more information on Reliability Metrics, please click here.
PMOS switch
LM2830
