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| 型号： | MAX8952BEWE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/31页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 2.5A 16WLP |
| 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： | 1 |
| 输出电压： | 0.77 V ~ 1.4 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| 频率 - 开关： | 3.25MHz |
| 电流 - 输出： | 2.5A |
| 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： | 16-UFBGA，WLCSP |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 16-WLP（2x2） |
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MAX8952
2.5A Step-Down Regulator
with Remote Sense in 2mm x 2mm WLP
General Description
The MAX8952 high-efficiency DC-to-DC step-down
switching regulator delivers up to 2.5A of output current.
The device operates from a 2.5V to 5.5V input voltage
range, supporting commonly-used battery technologies
in handsets. The output voltage is I 2 C programmable
from 0.77V to 1.40V. Remote sense ensures precise DC
regulation at the load. Total output error is less than
±1.5% over load, line, and temperature.
The IC operates at a 3.25MHz fixed frequency. The high
operating frequency minimizes the size of external com-
ponents. The switching frequency of the converter can be
synchronized to the master clock of the application. When
synchronizing to an external clock, the IC measures the
frequency of the external clock to ensure that the clock is
stable before changing the switching frequency to the
external clock frequency.
An on-board DAC allows adjustment of the output volt-
age in 10mV steps. The output voltage can be pro-
grammed directly through the I 2 C interface, or by
preloading a set of on-board registers and using the
two VID logic signals to select the appropriate register.
Other features include internal soft-start control circuitry
Features
o 2.5A Guaranteed Output Current
o I 2 C Programmable V OUT (770mV to 1.40V in 10mV
Steps)
o Initial Accuracy ±0.5% at 1.40V Output
o ±1.5% Output Accuracy Over Load, Line, and
Temperature (DCR ≤ 38.5m ? )
o Power-Save Mode Increases Light Load Efficiency
o Fixed 3.25MHz PWM Switching Frequency
o Small 1.0μH Inductor
o Synchronizes to 13MHz, 19.2MHz, or 26MHz
System Clock When Available
o Overvoltage and Overcurrent Protection
o Operates from 2.5V to 5.5V Input Supply
o Thermal Shutdown Protection
o On-Chip FET and Synchronous Rectifier
o 400kHz I 2 C Interface
o < 1μA Shutdown Current
o 16-Bump, 2mm x 2mm WLP Package
Ordering Information
to reduce inrush current, output overvoltage, overcur-
rent, and overtemperature protection.
Applications
PART
MAX8952EWE+T
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
16-Bump WLP
(0.5mm pitch)
Cell Phones and Smartphones
PDAs and MP3 Players
Tablet PCs
Bump Configuration
TOP VIEW
(BUMPS ON BOTTOM)
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Visit www.maximintegrated.com/products/patents for
product patent marking information.
Typical Operating Circuit
+
IN1
AGND
VID1
IN2
1.8V TO
3.6V
MAX8952
2.5V TO
5.5V
A1
A2
A3
A4
0.1 μ F
V DD
IN2
1 μ H
0.1 μ F
10 μ F
10 μ F
SNS+
B1
EN
B2
LX
B3
LX
B4
2.5V TO
5.5V
11 ?
SCL
SDA
LX
PGND
10 μ F
0.1 μ F
V OUT
(0.77V TO
1.40V)
IN1
SNS-
C1
V DD
VID0
C2
SDA
PGND
C3
SCL
PGND
C4
SYNC
2.2 μ F
0.1 μ F
SYNC
EN
VID0
SNS+
CPU
D1
D2
D3
D4
VID1
AGND
SNS-
WLP 0.5mm PITCH
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-5318; Rev 1; 6/11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8952EWE+T | 功能描述:直流/直流开关调节器 2.5A Step-Down Regulator RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX8954EWN+ | 制造商:Maxim Integrated Products 功能描述:PMIC FOR PICO PROJECTORS - Rail/Tube |
| MAX8954EWN+T | 制造商:Maxim Integrated Products 功能描述:PMIC FOR PICO PROJECTORS - Tape and Reel |
| MAX8958EWW+ | 制造商:Maxim Integrated Products 功能描述:COMPLETE PMIC FOR INTEL ATOM PROCESSOR-BASED PLATFORM - Rail/Tube |
| MAX8958EWW+T | 制造商:Maxim Integrated Products 功能描述:COMPLETE PMIC FOR INTEL ATOM PROCESSOR-BASED PLATFORM - Tape and Reel 制造商:Maxim Integrated Products 功能描述:COMPLETE POWER MANAGEMENT IC FOR INTEL'S |
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