- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄361024 > LM2619MTC (NATIONAL SEMICONDUCTOR CORP) 500mA Step-Down DC-DC Converter PDF資料下載
參數(shù)資料
| 型號(hào)： | LM2619MTC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 500mA Step-Down DC-DC Converter |
| 中文描述： | 1.1 A SWITCHING REGULATOR, 1000 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封裝： | MO-153AB, TSSOP-14 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大?。?/td> | 799K |
| 代理商： | LM2619MTC |
當(dāng)前第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)
LM2619MTC
500mA Step-Down DC-DC Converter
General Description
The LM2619MTC step down DC-DC converter is optimized
for powering circuits from a single Lithium-Ion cell. It steps
down an input voltage of 2.8V to 5.5V to an output of 1.5V to
3.6V at up to 500mA. Output voltage is set using resistor
feedback dividers.
The device offers three modes for mobile phones and similar
portable applications. Fixed-frequency PWM mode mini-
mizes RF interference. A SYNC input allows synchronizing
the switching frequency in a range of 500kHz to 1MHz. Low
current hysteretic PFM mode reduces quiescent current to
160μA (typ). Shutdown mode turns the device off and re-
duces battery consumption to 0.02μA (typ.).
Current limit and thermal shutdown features protect the de-
vice and system during fault conditions.
The LM2619MTC is available in a 14 pin TSSOP package. A
high switching frequency (600kHz) allows use of tiny
surface-mount components.
The device features external compensation to tailor the re-
sponse to a wide range of operating conditions.
Key Specifications
n
Operates from a single LiION cell (2.8V to 5.5V)
n
Output voltage range of 1.5V to 3.6V
n
±
2% DC feedback voltage precision
n
500mA maximum load capability
n
600μA typ PWM mode quiescent current
n
0.02μA typ shutdown current
n
600kHz PWM switching frequency
n
SYNC input for PWM mode frequency synchronization
from 500kHz to 1MHz
n
High efficiency (Up to 95%) in PWM mode from internal
synchronous rectification
n
100% Maximum Duty Cycle for Lowest Dropout
Features
n
14-pin TSSOP package
n
Uses small ceramic capacitors
n
5mV typ PWM mode output voltage ripple(C
OUT
= 22μF)
n
Internal soft start
n
Current overload protection
n
Thermal Shutdown
n
External compensation
Applications
n
Mobile Phones
n
Hand-Held Radios
n
RF PC Cards
n
Wireless LAN Cards
Typical Application Circuits
20065101
FIGURE 1. Typical Circuit for 1.8V Output Voltage
August 2003
L
L
2003 National Semiconductor Corporation
DS200651
www.national.com
PrintDate=2003/08/20 PrintTime=18:54:04 801627bc ds200651_p Rev. No. 1.25
cmserv
Proof
Seq=1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM2619MTCX | 500mA Step-Down DC-DC Converter |
| LM2621MM | Low Input Voltage, Step-Up DC-DC Converter |
| LM2621 | |
| LM2622 | |
| LM2623 | |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM2619MTC/NOPB | 功能描述:IC REG BUCK SYNC ADJ 14-TSSOP 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:- 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 |
| LM2619MTCX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:500mA Step-Down DC-DC Converter |
| LM261J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Comparator |
| LM2621 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Low Input Voltage, Step-Up DC-DC Converter |
| LM2621_05 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Low Input Voltage, Step-Up DC-DC Converter |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。