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參數(shù)資料
| 型號(hào)： | LM2736XMK |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Thin SOT23 750mA Load Step-Down DC-DC Regulator |
| 中文描述： | 2.3 A SWITCHING REGULATOR, 1900 kHz SWITCHING FREQ-MAX, PDSO6 |
| 封裝： | SOT-23, 6 PIN |
| 文件頁(yè)數(shù)： | 1/22頁(yè) |
| 文件大?。?/td> | 444K |
| 代理商： | LM2736XMK |
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LM2736
Thin SOT23 750mA Load Step-Down DC-DC Regulator
General Description
The LM2736 regulator is a monolithic, high frequency, PWM
step-down DC/DC converter in a 6-pin Thin SOT23 package.
It provides all the active functions to provide local DC/DC
conversion with fast transient response and accurate regu-
lation in the smallest possible PCB area.
With a minimum of external components and online design
support through WEBENCH
, the LM2736 is easy to use.
The ability to drive 750mA loads with an internal 350m
NMOS switch using state-of-the-art 0.5μm BiCMOS technol-
ogy results in the best power density available. The world
class control circuitry allows for on-times as low as 13ns,
thus supporting exceptionally high frequency conversion
over the entire 3V to 18V input operating range down to the
minimum output voltage of 1.25V. Switching frequency is
internally set to 550kHz (LM2736Y) or 1.6MHz (LM2736X),
allowing the use of extremely small surface mount inductors
and chip capacitors. Even though the operating frequencies
are very high, efficiencies up to 90% are easy to achieve.
External shutdown is included, featuring an ultra-low
stand-by current of 30nA. The LM2736 utilizes current-mode
control
and
internal
compensation
to
provide
high-
performance regulation over a wide range of operating con-
ditions. Additional features include internal soft-start circuitry
to reduce inrush current, pulse-by-pulse current limit, ther-
mal shutdown, and output over-voltage protection.
Features
n
Thin SOT23-6 package
n
3.0V to 18V input voltage range
n
1.25V to 16V output voltage range
n
750mA output current
n
550kHz (LM2736Y) and 1.6MHz (LM2736X)
switching frequencies
n
350m
NMOS switch
n
30nA shutdown current
n
1.25V, 2% internal voltage reference
n
Internal soft-start
n
Current-Mode, PWM operation
n
WEBENCH online design tool
Applications
n
Local Point of Load Regulation
n
Core Power in HDDs
n
Set-Top Boxes
n
Battery Powered Devices
n
USB Powered Devices
n
DSL Modems
n
Notebook Computers
Typical Application Circuit
Efficiency vs Load Current "X"
V
IN
= 5V, V
OUT
= 3.3V
20124201
20124251
WEBENCH
is a trademark of Transim.
October 2004
L
2004 National Semiconductor Corporation
DS201242
www.national.com
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| LM2736XMKX | Thin SOT23 750mA Load Step-Down DC-DC Regulator |
| LM2736YMK | Thin SOT23 750mA Load Step-Down DC-DC Regulator |
| LM2736YMKX | Thin SOT23 750mA Load Step-Down DC-DC Regulator |
| LM2750LDX-5.0 | Low Noise, 5.0V Regulated Switched Capacitor Voltage Converter |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2736XMK/NOPB | 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 750MA LOAD STEP-DOWN DC-DC REG RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| LM2736XMK/NOPB | 制造商:Texas Instruments 功能描述:DC/DC Converter IC |
| LM2736XMKX | 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| LM2736XMKX/NOPB | 功能描述:直流/直流開(kāi)關(guān)調(diào)節(jié)器 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| LM2736Y EVAL | 功能描述:BOARD EVALUATION LM2736Y RoHS:否 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):升壓 頻率 - 開(kāi)關(guān):3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
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