- 您现在的位置：买卖IC网 > PDF目录1850 > MAX8855ETJ+T (Maxim Integrated Products)IC REG BUCK ADJ 5A DL 32TQFN PDF资料下载
参数资料
| 型号： | MAX8855ETJ+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 5A DL 32TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 2 |
| 输出电压： | 0.6 V ~ 3.24 V |
| 输入电压： | 2.35 V ~ 3.6 V |
| PWM 型： | 电压模式 |
| 频率 - 开关： | 1MHz ~ 2MHz |
| 电流 - 输出： | 5A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 32-TQFN-EP（5x5） |
19-0726; Rev 4; 10/11
ATION
EVALU
AVAILA
KIT
BLE
Dual, 5A, 2MHz Step-Down Regulators
General Description
The MAX8855/MAX8855A high-efficiency, dual step-down
regulators are capable of delivering up to 5A at each out-
put. The devices operate from a 2.25V to 3.6V supply, and
provide output voltages from 0.6V to 0.9 x V IN , making them
ideal for on-board point-of-load applications. Total output
error is less than ±1% over load, line, and temperature.
The MAX8855/MAX8855A operate in PWM mode with a
switching frequency ranging from 0.5MHz to 2MHz, set
by an external resistor. It can also be synchronized to
an external clock in the same frequency range. Two
internal switching regulators operate 180° out-of-phase
to reduce the input ripple current, and consequently
reduce the required input capacitance. The high
operating frequency minimizes the size of external
components. High efficiency, internal dual-nMOS
design keeps the board cool under heavy loads. The
voltage-mode control architecture and the high-band-
width (> 15MHz typ) voltage-error amplifier allow a type
III compensation scheme to be utilized to achieve fast
response under both line and load transients, and also
allow for ceramic output capacitors.
Programmable soft-start reduces input inrush current.
Two enable inputs allow the turning on/off of each out-
put individually, resulting in great flexibility for system-
Features
o 27m Ω On-Resistance Internal MOSFETs
o Dual, 5A, PWM Step-Down Regulators
o Fully Protected Against Overcurrent,
Short Circuit, and Overtemperature
o ±1% Output Accuracy Over Load, Line,
and Temperature
o Operates from 2.25V to 3.6V Supply
o REFIN on One Channel for Tracking or
External Reference
o Integrated Boost Diodes
o Adjustable Output from 0.6V to 0.9 x V IN
o Soft-Start Reduces Inrush Supply Current
o 0.5MHz to 2MHz Adjustable Switching,
or FSYNC Input
o All-Ceramic-Capacitor Design
o 180° Out-of-Phase Operation Reduces Input
Ripple Current
o Individual Enable Inputs and PWRGD Outputs
o Safe-Start into Prebiased Output
o Available in 5mm x 5mm Thin QFN Package
o Sink/Source Current in DDR Applications
Ordering Information
level designs. A reference input is provided to facilitate
output-voltage tracking applications. The MAX8855/
MAX8855A are available in a 32-pin TQFN (5mm x 5mm)
package with 0.8mm max height.
PART
MAX8855ETJ+
MAX8855AETJ+
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
32 TQFN-EP*
32 TQFN-EP*
Applications
ASIC/CPU/DSP Power Supplies
DDR Power Supplies
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Typical Operating Circuit
Set-Top Box Power Supplies
Printer Power Supplies
INPUT1
2.25V TO 3.6V
IN1 IN2
INPUT2
2.25V TO 3.6V
Network Power Supplies
OUTPUT1
BST1
BST2
OUTPUT2
1.2V / 5A
LX1
PGND1
LX2
PGND2
1.5V / 5A
MAX8855/
MAX8855A
TYPE III
COMPENSATION
FB1
COMP1
FB2
COMP2
TYPE III
COMPENSATION
PWRGD1 PWRGD2
OFF
ON
EN1
GND
EN2
OFF
ON
Pin Configuration appears at end of data sheet.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
相关PDF资料 |
PDF描述 |
|---|---|
| MAX8856ETD+T | IC BATT CHARGER LI+ 1CELL 14TDFN |
| MAX8860EUA33+ | IC REG LDO 3.3V/ADJ .3A 8-UMAX |
| MAX8862RESE+T | IC REG LDO 2.85V/ADJ 16-SOIC |
| MAX8863REUK+T | IC REG LDO 2.8V/ADJ .12A SOT23-5 |
| MAX8865TEUA+ | IC REG LDO 3.15V/ADJ .1A 8UMAX |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8855EVKIT+ | 功能描述:电源管理IC开发工具 MAX8855 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| MAX8856ETD+ | 制造商:Maxim Integrated Products 功能描述:USB/AC ADAPTER, LI+ LINEAR BATTERY CHARGER WITH INTEGRATED - Bulk |
| MAX8856ETD+T | 功能描述:电池管理 USB/AC Adapter Li+ Linear Bat Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX8857AETL+ | 制造商:Maxim Integrated Products 功能描述:SMALLEST, ALL-INTERNAL MOSFET, 7-CHANNEL 2 AA DSC PMIC - Rail/Tube |
| MAX8857AETL+T | 制造商:Maxim Integrated Products 功能描述:SMALLEST, ALL-INTERNAL MOSFET, 7-CHANNEL 2 AA DSC PMIC - Tape and Reel |
发布紧急采购，3分钟左右您将得到回复。