参数资料
型号: MAX17003ETJ+T
厂商: Maxim Integrated Products
文件页数: 35/36页
文件大小: 0K
描述: IC PS CTRLR FOR NOTEBOOKS 32TQFN
标准包装: 2,500
应用: 控制器,笔记本电脑电源系统
输入电压: 6 V ~ 26 V
输出数: 4
输出电压: 3.3V,5V,2 V ~ 5.5 V
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
供应商设备封装: 32-TQFN-EP(5x5)
包装: 带卷 (TR)
High-Efficiency, Quad-Output, Main Power-
Supply Controllers for Notebook Computers
MAX17003/MAX17004
CONNECT THE
EXPOSED PAD TO
ANALOG GND
VIA TO POWER
GROUND
CONNECT GND AND PGND TO THE
REF BYPASS
CAPACITOR
CONTROLLER AT ONE POINT
ONLY AS SHOWN
SINGLE
n-CHANNEL
MOSFETS
KELVIN SENSE VIAS
UNDER THE SENSE
RESISTOR
(REFER TO THE EVALUATION KIT)
DUAL
n-CHANNEL
MOSFET
INDUCTOR
INDUCTOR
DH
LX
DL
INPUT
C IN
C OUT
C OUT
INPUT
C OUT
C IN
GROUND
OUTPUT
OUTPUT
GROUND
HIGH-POWER LAYOUT
LOW-POWER LAYOUT
Figure 9. PCB Layout
Table 6. Functional Differences Between MAX8744/MAX8745 and MAX17003/MAX17004
FEATURE
Startup
Shutdown
DL3 and DL5
States
Power-Good
MAX8744/MAX8745
Startup operating mode depends on the SKIP setting.
(e.g., SKIP is low, then startup occurs in skip mode).
Actively discharges the output down to zero.
DL3 and DL5 are high in shutdown.
DL3 and DL5 are latched high during an OV fault of
the respective output (MAX8744 only).
PGOOD3: Power-good indicator for SMPS3.
PGOOD5: Power-good indicator for SMPS5.
PGOODA: Power-good indicator for the auxiliary LDO.
MAX17003/MAX17004
Startup is always in low-noise pulse-skipping mode (i.e.,
same as SKIP = REF setting). This allows for startup into
prebiased outputs.
The SKIP setting takes effect once the SMPS is in regulation.
Soft discharge of the output using the DSCHG3 and
DSCHG5 pins.
DL3 and DL5 are low in shutdown.
DL3 and DL5 are latched high during an OV fault of the
respective output (MAX17003 only).
PGDALL: Power-good indicator for SMPS3 and SMPS5.
Auxiliary LDO does not have power-good indicator.
Chip Information
TRANSISTOR COUNT: 6897
PROCESS: BiCMOS
______________________________________________________________________________________
35
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