參數(shù)資料
型號(hào)： EL7551CUZ-T7
廠商： INTERSIL CORP
元件分類： 穩(wěn)壓器
英文描述： Monolithic 1Amp DC:DC Step-down Regulator
中文描述： 2 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO16
封裝： ROHS COMPLIANT, QSOP-16
文件頁(yè)數(shù)： 1/9頁(yè)
文件大小： 181K
代理商： EL7551CUZ-T7
1
FN7291.1
EL7551
Monolithic 1Amp DC:DC Step-down
Regulator
The EL7551 is an integrated, synchronous step-down
regulator with output voltage adjustable from 1.0V to 3.8V. It
is capable of delivering 1A continuous current at up to 95%
efficiency. The EL7551 operates at a constant frequency
pulse width modulation (PWM) mode, making external
synchronization possible. Patented on-chip resistorless
current sensing enables current mode control, which
provides cycle-by-cycle current limiting, over-current
protection, and excellent step load response. The EL7551 is
available in a fused-lead 16-pin QSOP package. With proper
external components, the whole converter fits into a less
than 0.4 in
2
area. The minimal external components and
small size make this EL7551 ideal for desktop and portable
applications.
The EL7551 is specified for operation over the -40°C to
+85°C temperature range.
Pinout
EL7551
(16-PIN QSOP)
TOP VIEW
Features
Integrated synchronous MOSFETs and current mode
controller
1A continuous output current
Up to 95% efficiency
4.5V to 5.5V input voltage
Adjustable output from 1V to 3.8V
Cycle-by-cycle current limit
Precision reference
±0.5% load and line regulation
Adjustable switching frequency to 1.2MHz
Oscillator synchronization possible
Internal soft start
Over temperature protection
Under voltage lockout
16-pin QSOP package
Pb-free plus anneal available (RoHS compliant)
Applications
DSP, CPU Core and IO Supplies
Logic/Bus Supplies
Portable Equipment
DC:DC Converter Modules
GTL + Bus Power Supply
Manufactured under U.S. Patent No. 57,323,974
1
2
3
4
16
15
14
13
5
6
7
12
11
10
8
9
SGND
COSC
VDD
PGND
PGND
VIN
VIN
EN
PGND
VREF
FB
VDRV
LX
LX
VHI
PGND
R3
R2
L1
C3
C4
C1
C5
R1
1k
C6
0.1μF
C
7
47μF
V
(3.3V,1A)
V
(4.5V-5.5V)
2.37k
10μH
0.1μF
0.1μF270pF
39
10μF
ceramic
Ordering Information
PART NUMBER
PART
MARKING
PACKAGE
TAPE &
REEL
PKG.
DWG. #
EL7551CU
7551CU
16-Pin QSOP
-
MDP0040
EL7551CU-T7
7551CU
16-Pin QSOP
7”
MDP0040
EL7551CU-T13
7551CU
16-Pin QSOP
13”
MDP0040
EL7551CUZ
(See Note)
7551CUZ
16-Pin QSOP
(Pb-free)
-
MDP0040
EL7551CUZ-T7
(See Note)
7551CUZ
16-Pin QSOP
(Pb-free)
7”
MDP0040
EL7551CUZ-T13
(See Note)
7551CUZ
16-Pin QSOP
(Pb-free)
13”
MDP0040
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb
and Pb-free soldering operations. Intersil Pb-free products are MSL classified
at Pb-free peak reflow temperatures that meet or exceed the Pb-free
requirements of IPC/JEDEC J STD-020.
Data Sheet
March 21, 2006
NOT RECOMMENDED FOR NEW DESIGNS
SEE EL7531 OR EL7536
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002, 2003, 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
相關(guān)PDF資料
PDF描述
EL7554(中文) Monolithic 4 Amp DC-DC Step-Down Regulator(單片4A DC-DC降壓穩(wěn)壓器)
EL7554IREZ-T13 Monolithic 4 Amp DC-DC Step-Down Regulator
EL7554 Monolithic 4 Amp DC-DC Step-Down Regulator
EL7554IRE Monolithic 4 Amp DC-DC Step-Down Regulator
EL7554IRE-T13 Monolithic 4 Amp DC-DC Step-Down Regulator
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EL7554 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Monolithic 4 Amp DC-DC Step-Down Regulator
EL7554_06 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Monolithic 4 Amp DC-DC Step-Down Regulator
EL7554IRE 功能描述:IC REG BUCK SYNC ADJ 4A 28HTSSOP RoHS:否 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(wú) 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
EL7554IRE-EVAL 功能描述:電源管理IC開發(fā)工具 DB7554IRE ELANTEC DE MO BRD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
EL7554IRE-T13 功能描述:IC REG BUCK SYNC ADJ 4A 28HTSSOP RoHS:否 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(wú) 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(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*