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参数资料
| 型号： | MAX8649BEWE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/31页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 1.8A 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： | 0.75 V ~ 1.38 V |
| 输入电压： | 2.5 V ~ 5.5 V |
| 频率 - 开关： | 3.25MHz |
| 电流 - 输出： | 1.8A |
| 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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1.8A Step-Down Regulator with
Remote Sense in 2mm x 2mm WLP
SYNC
OSC
CLOCK GEN
IN2
V DD
SCL
I 2 C INTERFACE
PWM LOGIC
LX
SDA
IN1
EN
PGND
SNS+
VID0
VID1
AGND
VOLTAGE
CONTROL, V REF ,
BIAS, ETC.
V DAC
MAX8649
SNS-
MAX8649A
Figure 1. Block Diagram
Detailed Description
The MAX8649/MAX8649A high-efficiency, 3.25MHz
step-down switching regulator delivers up to 1.8A of
output current. The device operates from a 2.5V to 5.5V
input voltage range, and the output voltage is I 2 C pro-
grammable from 0.75V to 1.38V in 10mV increments.
Remote sense ensures precise DC regulation at the
load. Total output error is less than 2% over load, line,
and temperature. The ICs feature different I 2 C address-
es so that multiple devices may be used in a system
(see the Ordering Information section.)
Dynamic Voltage Scaling
The output voltage is dynamically adjusted by use of
the VID0 and VID1 logic inputs, allowing selection
between four predefined operation modes/voltage
configurations.
Table 1. VID0 and VID1 Configuration
For each of the different output modes, the following
parameters are programmable:
? Output voltage from 0.75V to 1.38V in 10mV steps
? Mode of operation: Forced PWM or power save
? Enable/disable of synchronization of switching
frequency to external clock source
The relation between the VID0/VID1 and operation
mode is given by Table 1.
The VID_ inputs have internal pulldown resistors. These
pulldown resistors can be disabled through the CONTROL
register after the ICs are enabled, achieving lowest
possible quiescent current. When EN is low, the CON-
TROL register is reset to default, enabling the pulldown
resistors (see Table 7).
VID1
0
0
1
1
VID0
0
1
0
1
MODE
MODE0
MODE1
MODE2
MODE3
I 2 C REGISTER
Table 3
Table 4
Table 5
Table 6
DEFAULT
SWITHCING
MODE
FORCED PWM
POWER SAVE
FORCED PWM
FORCED PWM
DEFAULT
SYNCHRONIZATION
OFF
OFF
OFF
OFF
DEFAULT
OUTPUT
VOLTAGE (V)
1.27
1.05
1.23
1.05
______________________________________________________________________________________
11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX8649EVKIT+ | 制造商:Maxim Integrated Products 功能描述:1.8A STEP-DOWN REGULATOR W/DIFFERENTIAL REMOTE SENSE IN 2MM - Boxed Product (Development Kits) |
| MAX8649EWE+ | 制造商:Maxim Integrated Products 功能描述:1.8A STEP-DOWN REGULATOR W/DIFFEREN - Rail/Tube |
| MAX8649EWE+T | 功能描述:直流/直流开关调节器 1.8A 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 |
| MAX8649SEWE+T | 功能描述:直流/直流开关调节器 1.8A 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 |
| MAX864EEE | 功能描述:电荷泵 Dual-Output Charge Pump RoHS:否 制造商:Maxim Integrated 功能:Inverting, Step Up 输出电压:- 1.5 V to - 5.5 V, 3 V to 11 V 输出电流:100 mA 电源电流:1 mA 最大工作温度:+ 70 C 封装 / 箱体:SOIC-8 Narrow 封装:Tube |
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