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LM2825 Product Folder

Integrated Power Supply 1A DC-DC Converter

Generic P/N 2825

WEBENCH Live Simulation!

LM2825 Webench™ Custom Design/Analyze/Build It
4.5 <=	V in Lower V	<=	V in Upper V	<= 40.0
V out	1.2 <=		V	<= 15.0
I out			A	<= 1.00
Ambient Temperature			°C	<= 100
What is Webench?

Parametric Table

Temperature Min (deg C)	-40
Temperature Max (deg C)	125
Multiple Output Capability	No
On/Off Pin	Yes
Error Flag	No
InputMin Voltage (Volt)	4.50, 15, 4.75, 7
InputMax Voltage (Volt)	40
Output Current (mA)	1000
Output Voltage (Volt)	12, 3.30, 5
Adjustable Output	No, Yes
Output Range	7V-15V, Undefined, 1.23V-8V
Switching Frequency (Hz)	150000
Adj Switch Frequency	No
Sync Pin	No
Efficiency (%)	80, 78, 81
Flyback	No
Inverting	No
Step-Up	No
Step-Down	Yes, No
RegType	Switching Regulator

Datasheet

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
LM2825 Integrated Power Supply 1A DC-DC Converter	633 Kbytes	23-May-97	View Online	Download	Receive via Email
LM2825 Integrated Power Supply 1A DC-DC Converter (JAPANESE)	623 Kbytes

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

Package Availability, Models, Samples & Pricing

Part Number

Package

Status

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking

Type

Pins

MSL/Lead-Free Availability

Lead
Time

Qty

SPICE

IBIS

Qty

$US each

LM2825HN-ADJ

MDIP

Status

Full production

N/A

1K+

$10.50

rail
of
12

@SIMPLE SWITCHERTM
ZXXYYTT
LM2825HN-ADJ
ADJ, 1A OUTPUT

8-10 weeks

25000

LM2825N-12

MDIP

Status

Full production

N/A

1K+

$10.50

rail
of
12

@SIMPLE SWITCHERTM
ZXXYYTT
LM2825N-12
12V, 1A OUTPUT

8-10 weeks

25000

LM2825N-3.3

MDIP

Status

Full production

N/A

1K+

$10.50

rail
of
12

@SIMPLE SWITCHERTM
ZXXYYTT
LM2825N-3.3
3.3V, 1A OUTPUT

8-10 weeks

25000

LM2825N-5.0

MDIP

Status

Full production

N/A

1K+

$10.50

rail
of
12

@SIMPLE SWITCHERTM
ZXXYYTT
LM2825N-5.0
5.0V, 1A OUTPUT

8-10 weeks

25000

LM2825N-ADJ

MDIP

Status

Full production

N/A

1K+

$10.50

rail
of
12

@SIMPLE SWITCHERTM
ZXXYYTT
LM2825N-ADJ
ADJ, 1A OUTPUT

8-10 weeks

25000

General Description

The LM2825 is a complete 1A DC-DC Buck converter packaged in a 24-lead molded Dual-In-Line integrated circuit package.

Contained within the package are all the active and passive components for a high efficiency step-down (buck) switching regulator. Available in fixed output voltages of 3.3V, 5V and 12V, as well as two adjustable versions, these devices can provide up to 1A of load current with fully guaranteed electrical specifications.

Self-contained, this converter is also fully protected from output fault conditions, such as excessive load current, short circuits, or excessive temperatures.

Features

Minimum design time required
3.3V, 5V and 12V fixed output versions
Two adjustable versions allow 1.23V to 15V outputs
Wide input voltage range, up to 40V
Low-power standby mode, I_Q typically 65 µA
High efficiency, typically 80%
±4% output voltage tolerance
Excellent line and load regulation
TTL shutdown capability/programmable Soft-start
Thermal shutdown and current limit protection
-40°C to +85°C ambient temperature range

Applications

Simple high-efficiency step-down (buck) regulator
On-card switching regulators
Efficient pre-regulator for linear regulators
Distributed power systems
DC/DC module replacement

Reliability Metrics

Part Number	Process	Sample Size (EFR)	Device Hours	Long Term Failure Rates (FITS)	MTTF
LM2825HN-ADJ	LB300	17700	1100000	4	311012542
LM2825N-12	LB300	17700	1100000	4	311012542
LM2825N-3.3	LB300	17700	1100000	4	311012542
LM2825N-5.0	LB300	17700	1100000	4	311012542
LM2825N-ADJ	LB300	17700	1100000	4	311012542

For more information on Reliablitity Metrics, please click here.

Application Notes

Title	Size in Kbytes	Date	View Online	Download	Receive via Email
AN-1038: Application Note 1038 LM2825 Application Information Guide	403 Kbytes	20-Sep-02	View Online	Download	Receive via Email
Application Note 1038 LM2825 Application Information Guide (JAPANESE)	365 Kbytes
AN-1061: Application Note 1061 Power Conversion in Line-Powered Equipment	188 Kbytes	1-Oct-02	View Online	Download	Receive via Email
AN-1246: Application Note 1246 Stresses in Wide Input DC-DC Converters	272 Kbytes	26-Sep-02	View Online	Download	Receive via Email

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

[Information as of 15-Jan-2004]

LM2825 Product Folder

Datasheet

Package Availability, Models, Samples & Pricing

General Description

Features

Applications

Reliability Metrics

Application Notes