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| 型号： | MAX15118EWI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/23页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 18A 28WLP |
| 产品培训模块： | 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： | 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： | 18A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFBGA，WLBGA |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 28-WLP（3.5x2） |
19-5967; Rev 1; 9/11
EVALUATION KIT AVAILABLE
MAX15118
High-Efficiency, 18A, Current-Mode Synchronous
Step-Down Regulator with Integrated Switches
General Description
The MAX15118 high-efficiency, current-mode step-down
regulator with integrated power switches operates from
2.7V to 5.5V and delivers up to 18A of output current in
a small 2mm x 3.5mm package. The MAX15118 offers
excellent efficiency with skip mode capability at light-
load conditions, yet provides unmatched efficiency
under heavy load conditions. The combination of small
size and high efficiency makes this device suitable for
both portable and nonportable applications.
The MAX15118 utilizes a current-mode control architecture
with a high-gain transconductance error amplifier, which
allows a simple compensation scheme and enables a
cycle-by-cycle current limit with fast response to line and
load transients. A factory-trimmed switching frequency of
1MHz (PWM operation) allows for a compact, all-ceramic
capacitor design.
Integrated switches with low on-resistance ensure high
efficiency at heavy loads while minimizing critical induc-
tances. The MAX15118’s simple layout and footprint
assure first-pass success in new designs.
Other features of the MAX15118 include a capacitor-
programmable soft-start to reduce inrush current, safe
Features
S Continuous 18A Output Current
S ±1% Feedback Accuracy Over Load, Line, and
Temperature
S Operates from 2.7V to 5.5V Supply
S Input Undervoltage Lockout
S Adjustable Output Range from 0.6V 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 a Prebiased Output
S External Reference Input
S Selectable Skip Mode Option for Improved
Efficiency at Light Loads
S Enable Input/PGOOD Output Allows Sequencing
S Remote Ground Sense for Improved Accuracy
S Thermal and Overcurrent Protection
S Tiny 2.10mm x 3.56mm, 28-Bump WLP Package
Applications
startup into a prebiased output, an enable input, and a
power-good output for power sequencing.
Notebooks
Servers
DDR Memory
Base Stations
The regulator is available in a 28-bump (4 x 7), 2.10mm
x 3.56mm WLP package, and is fully specified over the
-40 N C to +85 N C extended temperature range.
Distributed Power Systems
Ordering Information appears at end of data sheet.
Typical Operating Circuits
ON
V IN = 2.7V TO 5.5V
OFF
EN
SKIP
AIN
MAX15118
BST
LX
GSNS
C BST
L OUT
C OUT
V OUT
R1
IN
C IN
PGOOD
R PULL
FB
PGOOD
COMP
R2
C SS
SS/REFIN
GND
C CC
R C
C C
PWM MODE OPERATION
Typical Operating Circuits continued at end of data sheet.
For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX15118.related
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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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