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參數(shù)資料
| 型號(hào)： | LM2825N-3.3 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Integrated Power Supply 1A DC-DC Converter |
| 中文描述： | 1.2 A SWITCHING REGULATOR, 150 kHz SWITCHING FREQ-MAX, PDIP24 |
| 封裝： | 1.250 X 0.540 INCH, 0.260 INCH HEIGHT, PLASTIC, DIP-24 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 633K |
| 代理商： | LM2825N-3.3 |
LM2825
Integrated Power Supply 1A DC-DC Converter
General Description
The LM2825 is a complete 1A DC-DC Buck converter pack-
aged 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 electri-
cal specifications.
Self-contained, this converter is also fully protected from out-
put fault conditions, such as excessive load current, short
circuits, or excessive temperatures.
Highlights
n
No external components required (fixed output voltage
versions)
n
Integrated circuit reliability
n
MTBF over 20 million hours
n
Radiated EMI meets Class B stipulated by CISPR 22
n
High power density, 35 W/in
3
n
24-pin DIP package profile (1.25 x 0.54 x 0.26 inches)
Features
n
Minimum design time required
n
3.3V, 5V and 12V fixed output versions
n
Two adjustable versions allow 1.23V to 15V outputs
n
Wide input voltage range, up to 40V
n
Low-power standby mode, I
Q
typically 65 μA
n
High efficiency, typically 80%
n
±
4% output voltage tolerance
n
Excellent line and load regulation
n
TTL shutdown capability/programmable Soft-start
n
Thermal shutdown and current limit protection
n
40C to +85C ambient temperature range
Applications
n
Simple high-efficiency step-down (buck) regulator
n
On-card switching regulators
n
Efficient pre-regulator for linear regulators
n
Distributed power systems
n
DC/DC module replacement
Standard Application
(Fixed output voltage versions)
Radiated EMI
Radiated emission of electromagnetic fields is measured at
10m distance. The emission levels are within the Class B
limits stipulated by CISPR 22.
30. . . .230 MHz
230. . . .1000 MHz
1. . . .10 GHz
30 dB μV/m
37 dB μV/m
46 dB μV/m
Connection Diagram
Ordering Information
Order Number LM2825N-3.3, LM2825N-5.0, LM2825N-12,
LM2825N-ADJ or LM2825HN-ADJ
See NS Package Number NA24F
DS012661-27
DS012661-1
DS012661-2
“NC (Do not use)” pins: See Figure 11
Top View
May 1997
L
1997 National Semiconductor Corporation
DS012661
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2825N-5.0 | Integrated Power Supply 1A DC-DC Converter |
| LM2825N-ADJ | Integrated Power Supply 1A DC-DC Converter |
| LM2825HN-ADJ | Integrated Power Supply 1A DC-DC Converter |
| LM2825-12 | Integrated Power Supply 1A DC-DC Converter(633.82 k) |
| LM2825-3.3 | Integrated Power Supply 1A DC-DC Converter(633.82 k) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2825N33 | 制造商:Texas Instruments 功能描述:SWITCHING REG 1A 3.3V 2825 DIP24 |
| LM2825N-5.0 | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| LM2825N-5.0/NOPB | 功能描述:DC/DC 開關(guān)控制器 INTEGR PWR SUPPLY 1A DC-DC CONVERTER RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| LM2825N50 | 制造商:Texas Instruments 功能描述:NATIONAL 24 PIN DIP |
| LM2825N-50 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LM2825 Integrated Power Supply 1A DC-DC Converter |
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