- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358819 > LM2575HVS-5.0 (NATIONAL SEMICONDUCTOR CORP) SIMPLE SWITCHER 1A Step-Down Voltage Regulator PDF資料下載
參數(shù)資料
| 型號(hào)： | LM2575HVS-5.0 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| 中文描述： | 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封裝： | PLASTIC, TO-263, 5 PIN |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 195K |
| 代理商： | LM2575HVS-5.0 |
www.ti.com
FEATURES
Fixed 3.3-V, 5-V, 12-V, and 15-V Options With
±
5% Regulation (Max) Over Line, Load, and
Temperature Conditions
Adjustable Option With a Range of 1.23 V to
37 V and
±
4% Regulation (Max) Over Line,
Load, and Temperature Conditions
Specified 1-A Output Current
Wide Input Voltage Range
…
4.75 V to 40 V
Requires Only Four External Components
(Fixed Versions) and Uses Readily Available
Standard Inductors
52-kHz (Typ) Fixed-Frequency Internal
Oscillator
TTL Shutdown Capability With 50-
μ
A (Typ)
Standby Current
High Efficiency
…
as High as 88% (Typ)
Thermal Shutdown and Current-Limit
Protection With Cycle-by-Cycle Current
Limiting
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
NC
NC
OUTPUT
NC
GND
NC
FB
NC
V
IN
NC
GND
GND
GND
GND
NC
ON/OFF
N (PDIP) PACKAGE
(TOP VIEW)
KTT (TO-263) PACKAGE
(TOP VIEW)
1
2
3
4
5
G
ON/OFF
FEEDBACK
GND
OUTPUT
V
IN
APPLICATIONS
Simple High-Efficiency Step-Down (Buck)
Regulator
Pre-Regulator for Linear Regulators
On-Card Switching Regulators
Positive-to-Negative Converter (Buck-Boost)
DESCRIPTION/ORDERING INFORMATION
The LM2575 greatly simplifies the design of switching power supplies by conveniently providing all the active
functions needed for a step-down (buck) switching regulator in an integrated circuit. Accepting a wide input
voltage range and available in fixed output voltages of 3.3 V, 5 V, 12 V, 15 V, or an adjustable output version,
the LM2575 has an integrated switch capable of delivering 1 A of load current, with excellent line and load
regulation. The device also offers internal frequency compensation, a fixed-frequency oscillator, cycle-by-cycle
current limiting, and thermal shutdown. In addition, a manual shutdown is available via an external ON/OFF pin.
LM2575
1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR
SLVS569D–JANUARY 2005–REVISED JULY 2005
The LM2575 represents a superior alternative to popular three-terminal linear regulators. Due to its high
efficiency, it significantly reduces the size of the heat sink and, in many cases, no heat sink is required.
Optimized for use with standard series of inductors available from several different manufacturers, the LM2575
greatly simplifies the design of switch-mode power supplies by requiring a minimal addition of only four to six
external components for operation.
The LM2575 is characterized for operation over the virtual junction temperature range of –40
°
C to 125
°
C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 2005, Texas Instruments Incorporated
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2575S-5.0 | SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| LM2575S-3.3 | SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| LM2575S-15 | SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| LM2575S-12 | SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| LM2575M-ADJ | SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2575HVS-ADJ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| LM2575HVS-ADJ/NOPB | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1A STEP-DOWN VLTG REG RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| LM2575HVS-ADJEP | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SIMPLE SWITCHER 1A Step-Down Voltage Regulator |
| LM2575HVSX-12 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Mode SMPS Controller |
| LM2575HVSX-12/NOPB | 功能描述:IC REG BUCK 12V 1A TO263-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:SIMPLE SWITCHER® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3.3V 輸入電壓:4.5 V ~ 24 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:125mA 同步整流器:無 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 包裝:Digi-Reel® 供應(yīng)商設(shè)備封裝:SOT-6 其它名稱:MAX1836EUT33#TG16DKR |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。