- 您現在的位置：買賣IC網 > PDF目錄67758 > LTC3555EUFD#TR (LINEAR TECHNOLOGY CORP) 3 A BATTERY CHARGE CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PQCC28 PDF資料下載
參數資料
| 型號： | LTC3555EUFD#TR |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | 3 A BATTERY CHARGE CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PQCC28 |
| 封裝： | 4 X 5 MM, 0.75 MM HEIGHT, PLASTIC, MO-220WXXX, QFN-28 |
| 文件頁數： | 1/32頁 |
| 文件大小： | 295K |
| 代理商： | LTC3555EUFD#TR |
當前第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
LTC3555
1
3555f
■ HDD-Based MP3 Players, PDAs, GPS, PMPs
■ Other USB-Based Handheld Products
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
High Efciency USB Power
Manager + Triple
Step-Down DC/DC
The LTC
3555 is a highly integrated power management
and battery charger IC for Li-Ion/Polymer battery applica-
tions. It includes a high efciency current limited switching
PowerPath manager with automatic load prioritization, a
battery charger, an ideal diode and three general purpose
synchronous step-down switching regulators.
Designed specically for USB applications, the LTC3555’s
switching power manager automatically limits input cur-
rent to a maximum of either 100mA or 500mA for USB
applications or 1A for adapter-powered applications. Unlike
linear PowerPath controllers, the LTC3555’s switching input
stage transmits nearly all of the 2.5W available from the
USB port to the system load with minimal power wasted
as heat. This feature allows the LTC3555 to provide more
power to the application and eases the constraint of thermal
budgeting in small spaces.
Two of the three general purpose switching regulators can
provide up to 400mA and the third can deliver 1A. The entire
product can be controlled via I2C or simple I/O.
The LTC3555 is available in the 28-pin (4mm
× 5mm ×
0.75mm) QFN surface mount package.
High Efciency PowerPath Manager and Triple Step-Down Regulator
POWER MANAGER
■ High Efciency Switching PowerPathTM Controller
with Bat-TrackTM Adaptive Output Control
■ Programmable USB or Wall Current Limit
(100mA/500mA/1A)
■ Full Featured Li-Ion/Polymer Battery Charger
■ 1.5A Maximum Charge Current
■ Internal 180m
Ω Ideal Diode + External Ideal Diode
Controller Powers Load in Battery Mode
■ Low No-Load Quiescent Current when Powered from
BAT (<30μA)
DC/DCs
■ Triple High Efciency Step-Down DC/DCs
(1A/400mA/400mA IOUT)
■ All Regulators Operate at 2.25MHz
■ Dynamic Voltage Scaling on Two Outputs
■ I2C or Independent Enable, VOUT Controls
■ Low No-Load Quiescent Current: 20μA
■ 28-Pin (4mm
× 5mm × 0.75mm) QFN Surface
Mount Package
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
PowerPath and Bat-Track are trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents, including 6522118 and 6404251
Li-Ion
0.8V TO 3.6V/400mA
3.3V/25mA
0.8V TO 3.6V/400mA
0.8V TO 3.6V/1A
RST
2
OPTIONAL
0V
T
TO OTHER
LOADS
+
LTC3555
TRIPLE
HIGH EFFICIENCY
STEP-DOWN
SWITCHING
REGULATORS
I2C PORT
ALWAYS ON LDO
MEMORY
RTC/LOW
POWER LOGIC
I2C
CORE
I/O
3555 TA01
μPROCESSOR
USB/WALL
4.35V TO 5.5V
CHARGE
ENABLE
CONTROLS
USB COMPLIANT
STEP-DOWN
REGULATOR
CC/CV
BATTERY
CHARGER
5
1
2
3
IOUT (A)
0.01
0
EFFICIENCY
(%)
20
40
60
80
0.1
1
3555 TA01b
100
10
30
50
70
90
BAT = 4.2V
BAT = 3.3V
VBUS = 5V
IBAT = 0mA
10x MODE
Switching Regulator Efciency to
System Load (POUT/PBUS)
相關PDF資料 |
PDF描述 |
|---|---|
| LTC3566EUF-2#PBF | 2.5 A BATTERY CHARGE CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PQCC24 |
| LTC3566EUF-2#TRPBF | 2.5 A BATTERY CHARGE CONTROLLER, 2700 kHz SWITCHING FREQ-MAX, PQCC24 |
| LTC3576EUFE-1#TRPBF | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC38 |
| LTC3576EUFE#PBF | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC38 |
| LTC3670EDDB#PBF | 1.1 A SWITCHING REGULATOR, 2590 kHz SWITCHING FREQ-MAX, PDSO12 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC3555EUFD-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Effi ciency USB Power Manager + Triple Step-Down DC/DC |
| LTC3555IUFD#PBF | 功能描述:IC USB POWER MANAGER 28-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 標準包裝:1 系列:- 應用:手持/移動設備 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應商設備封裝:14-LLP-EP（4x4） 包裝:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名稱:LP3905SD-30DKR |
| LTC3555IUFD#TRPBF | 功能描述:IC USB POWER MANAGER 28-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 標準包裝:1 系列:- 應用:手持/移動設備 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應商設備封裝:14-LLP-EP（4x4） 包裝:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名稱:LP3905SD-30DKR |
| LTC3555IUFD-1#PBF | 功能描述:IC USB POWER MANAGER 28-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 標準包裝:1 系列:- 應用:手持/移動設備 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應商設備封裝:14-LLP-EP（4x4） 包裝:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名稱:LP3905SD-30DKR |
| LTC3555IUFD-1#TRPBF | 功能描述:IC USB POWER MANAGER 28-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:- 標準包裝:1 系列:- 應用:手持/移動設備 電流 - 電源:- 電源電壓:3 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-WFDFN 裸露焊盤 供應商設備封裝:14-LLP-EP（4x4） 包裝:Digi-Reel® 配用:LP3905SD-30EV-ND - BOARD EVALUATION LP3905SD-30 其它名稱:LP3905SD-30DKR |
發布緊急采購，3分鐘左右您將得到回復。