LM2830 - High Frequency 1.0A Load - Step-Down DC-DC Regulator

	LM2830 - High Frequency 1.0A Load - Step-Down DC-DC Regulator

Datasheet	Packaging	Samples & Pricing	Reliability	Knowledge Base

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

General 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. More...

Applications

•	Local 5V to Vcore Step-Down Converters
•	Core Power in HDDs
•	Set-Top Boxes
•	USB Powered Devices
•	DSL Modems
•	Automotive

Typical Application

click for larger image

Parametric Table expand

Parametric Table collapse

Output Current 1000 mA

Input Min Voltage 3 Volt

Input Max Voltage 5.5 Volt

Output Min 0.6 Volt

Output Max 4.5 Volt

Frequency Min 1600, 3000 kHz

Frequency Max 1600, 3000 kHz

Output Current 1000 mA

Input Min Voltage 3 Volt

Input Max Voltage 5.5 Volt

Output Min 0.6 Volt

Output Max 4.5 Volt

Frequency Min 1600, 3000 kHz

Frequency Max 1600, 3000 kHz

Efficiency (peak) 93 %

On/Off Pin Yes

Error Flag No

SoftStart Yes

Sync Pin No

Inverting No

Flyback No

RegType Switching Regulator

Temperature Min -40 deg C

Temperature Max 125 deg C

Adjustable Output Yes

Adj Switch Frequency No

PWM Mode Current

Topology Buck

Special Features Internal compensation

Step-Down Yes

Multiple Output Capability No

Output Power Undefined Watt

Output Voltage Undefined Volt

Output Range 0.6V to 4.5V

Switching Frequency 1600, 3000 kHz

Feedback Voltage Undefined Volt

Regulator Family Undefined

AEC Q-100 Automotive Grade 1

Automotive Selection Guide Yes

Synchronous Rectification No

View Using Catalog

Typical Performance

*click for larger image

WEBENCH Live Simulation!

LM2830X WEBENCH® Custom Design/Analyze/Build It/Test It
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

Block Diagram

click for larger image

Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LM2830 High Frequency 1.0A Load - Step-Down DC-DC Regulator	470 Kbytes	1-May-08	View Online Download
LM2830 High Frequency 1.0A Load - Step-Down DC-DC Regulator (Japanese)	805 Kbytes

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Qty

Qty

$US each

LM2830XQMFE

5

NOPB

1

260

Full production

N/A

Samples

500+

$1.71

reel
of
250

6 weeks

N/A

LM2830XQMF

5

NOPB

1

260

Full production

N/A

Samples

1K+

$1.53

reel
of
1000

6 weeks

N/A

LM2830XMF

5

STD

NOPB

1

1

260

260

Full production

N/A

Samples

1K+

$1.25

reel
of
1000

6 weeks

2000

LM2830ZMF

5

NOPB

1

260

Full production

N/A

Samples

1K+

$1.50

reel
of
1000

6 weeks

1000

LM2830XQMFX

5

NOPB

1

260

Full production

N/A

1K+

$1.53

reel
of
3000

6 weeks

N/A

LM2830XMFX

5

NOPB

1

260

Full production

N/A

1K+

$1.25

reel
of
3000

6 weeks

5000

LM2830ZMFX

5

NOPB

1

260

Full production

N/A

1K+

$1.50

reel
of
3000

6 weeks

N/A

LM2830ZSD

6

NOPB

1

260

Full production

N/A

Samples

1K+

$1.50

reel
of
1000

6 weeks

1000

LM2830ZSDX

6

NOPB

1

260

Full production

N/A

1K+

$1.50

reel
of
4500

6 weeks

N/A

General 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.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM *	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM2830XMF	PVIP050	0	8430	0	0	495000	8	140457601
LM2830XMFX	PVIP050	0	8430	0	0	495000	8	140457601
LM2830XQMF	PVIP050	0	8430	0	0	495000	8	140457601
LM2830XQMFE	PVIP050	0	8430	0	0	495000	8	140457601
LM2830XQMFX	PVIP050	0	8430	0	0	495000	8	140457601
LM2830ZMF	PVIP050	0	8430	0	0	495000	8	140457601
LM2830ZMFX	PVIP050	0	8430	0	0	495000	8	140457601
LM2830ZSD	PVIP050	0	8430	0	0	495000	8	140457601
LM2830ZSDX	PVIP050	0	8430	0	0	495000	8	140457601

Note: The Early Failure Rates were calculated as point estimates. 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.

[Information as of 7-Jan-2009]