参数资料
型号: MAX15053EWL+T
厂商: Maxim Integrated Products
文件页数: 1/21页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 2A 9WLP
标准包装: 2,500
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.6 V ~ 5.17 V
输入电压: 2.7 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 1MHz
电流 - 输出: 2A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: *
封装/外壳: *
包装: *
供应商设备封装: *
EVALUA
19-5240; Rev 2; 7/11
TION KIT
AVA ILABLE
High-Efficiency, 2A, Current-Mode
Synchronous, Step-Down Switching Regulator
General Description
The MAX15053 high-efficiency, current-mode, synchro-
nous step-down switching regulator with integrated
power switches delivers up to 2A of output current.
The device operates from 2.7V to 5.5V and provides an
output voltage from 0.6V up to 94% of the input voltage,
making the device ideal for distributed power systems,
portable devices, and preregulation applications.
The MAX15053 utilizes a current-mode control archi-
tecture with a high gain transconductance error ampli-
fier. The current-mode control architecture facilitates
easy compensation design and ensures cycle-by-cycle
current limit with fast response to line and load transients.
The MAX15053 offers selectable skip-mode functionality
to reduce current consumption and achieve a higher effi-
ciency at light output load. The low R DS(ON) integrated
switches ensure high efficiency at heavy loads while min-
imizing critical inductances, making the layout design
a much simpler task with respect to discrete solutions.
Utilizing a simple layout and footprint assures first-pass
success in new designs.
The MAX15053 features a 1MHz, factory-trimmed, fixed-
frequency PWM mode operation. The high switching fre-
quency, along with the PWM current-mode architecture,
allows for a compact, all-ceramic capacitor design.
The MAX15053 offers a capacitor-programmable soft-
Features
S Internal 30m I (typ) R DS(ON) High-Side and 18m I
(typ) Low-Side MOSFETs at 5V
S Continuous 2A Output Current Over Temperature
S 96% Efficiency with 3.3V Output at 2A
S ±1% Output Voltage Accuracy Over Load, Line,
and Temperature
S Operates from 2.7V to 5.5V Supply
S Cycle-by-Cycle Overcurrent Protection
S Adjustable Output from 0.6V to Up to 0.94 x V IN
S Programmable Soft-Start
S Factory-Trimmed, 1MHz Switching Frequency
S Stable with Low-ESR Ceramic Output Capacitors
S Safe-Startup Into Prebiased Output
S External Reference Input
S Skip-Mode Functionality
S Enable Input/Power-Good Output
S Fully Protected Against Overcurrent and
Overtemperature
S Input Undervoltage Lockout
Ordering I nformation
start reducing inrush current, startup into PREBIAS
PART
TEMP RANGE
PIN-PACKAGE
operations, and a PGOOD open-drain output that can be
used as an interrupt and for power sequencing.
The MAX15053 is available in a 9-bump (3 x 3 array),
1.5mm x 1.5mm WLP package and is specified over the
-40 N C to +85 N C temperature range.
MAX15053EWL+ -40°C to +85°C 9 WLP
+ Denotes a lead(Pb)-free/RoHS-compliant package.
Typical Operating Circuit
Applications
Distributed Power Systems
Preregulators for Linear Regulators
INPUT
2.7V TO 5.5V
IN
LX
OUTPUT
1.8V/2A
Portable Devices
Notebook Power
MAX15053 GND
PGOOD
Server Power
IP Phones
ENABLE
OFF
ON
EN
SKIP
FB
COMP
SS/REFIN
_______________________________________________________________ Maxim Integrated Products 1
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.
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