Features • Space Saving SOT23-5 Package • Input voltage range of 3.0V to 5.5V • Output voltage range of 0.6V to 4.5V • 1.0A output current • High Switching Frequencies •  1.6MHz (LM2830X) •  3.0MHz (LM2830Z) • 130mΩ PMOS switch • 0.6V, 2% Internal Voltage Reference • Internal soft-start • Current mode, PWM operation • Thermal Shutdown • Over voltage protection Description The LM2830 regulator is a monolithic, high frequency, PWM step-down DC/DC converter in a 5 pin SOT23 and a 6 Pin LLP 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 LM2830 is easy to use. The ability to drive 1.0A loads with an internal 130 mΩ 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 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 LM2830 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. Applications • Local 5V to Vcore Step-Down Converters • Core Power in HDDs • Set-Top Boxes • USB Powered Devices • DSL Modems • Automotive

LM2830X   3.00 <= V in Lower  V   <= V in Upper  V   <= 5.50 V out 0.60 <=  V <= 4.50 I out    A <= 1.00 Ambient Temperature  °C <= 100 What are WEBENCH® tools? Also Recommended LM2831▲ 1.5A Version LM2832▲ 2.0A Version MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

Typical Application click for larger image	Block Diagram click for larger image
Typical Performance *click for larger image

Datasheet

Title		Size	Date	Other Language
	LM2830 High Frequency 1.0A Load - Step-Down DC-DC Regulator	470 Kbytes	1-May-08	日本語

Featured Application Notes

Title		Size	Date	Other Language
	AN-1038: Application Note 1038 LM2825 Application Information Guide	332 Kbytes	20-Sep-02	日本語
	AN-1061: Application Note 1061 Power Conversion in Line-Powered Equipment	162 Kbytes	1-Oct-02	日本語

More Application Notes

Title		Size	Date	Other Language
	AN-1973: Application Note 1973 Benefits and Challenges of High-Frequency Regulators	348 Kbytes	25-Jun-09
	AN-1556: Application Note 1556 LM2832Z 8-Pin eMSOP Demo Board	1199 Kbytes	8-Jan-09
	AN-1550: Application Note 1550 LM2831X 6-Pin LLP Demo Board	1727 Kbytes	8-Jan-09
	AN-1553: Application Note 1553 LM2832Z 6-Pin LLP Demo Board	1726 Kbytes	8-Jan-09
	AN-1552: Application Note 1552 LM2832X 6-Pin LLP Demo Board	1727 Kbytes	8-Jan-09
	AN-1554: Application Note 1554 LM2832X 8-Pin eMSOP Demo Board	1240 Kbytes	8-Jan-09
	AN-1555: Application Note 1555 LM2832Y 8-Pin eMSOP Demo Board	1144 Kbytes	8-Jan-09

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM2830XMF	PVIP050	0	9960	0	0	855000	5	242608584
LM2830XMFX	PVIP050	0	9960	0	0	855000	5	242608584
LM2830XQMF	PVIP050	0	9960	0	0	855000	5	242608584
LM2830XQMFE	PVIP050	0	9960	0	0	855000	5	242608584
LM2830XQMFX	PVIP050	0	9960	0	0	855000	5	242608584
LM2830ZMF	PVIP050	0	9960	0	0	855000	5	242608584
LM2830ZMFX	PVIP050	0	9960	0	0	855000	5	242608584
LM2830ZSD	PVIP050	0	9960	0	0	855000	5	242608584
LM2830ZSDX	PVIP050	0	9960	0	0	855000	5	242608584

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.

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