参数资料
型号: MAX17003AETJ+T
厂商: Maxim Integrated Products
文件页数: 19/36页
文件大小: 0K
描述: IC SUPPLY CTLR NOTEBOOKS 32TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
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
Output Discharge (Soft-Discharge)
When the switching regulators are disabled—when ON_
or SHDN is pulled low, or when an output undervoltage
fault occurs —the internal soft-discharge gradually
decreases the output voltage by pulling DSCHG_ low
(see the SMPS Shutdown Waveform in the Typical
Operating Characteristics). This slowly discharges the
output capacitance, eliminating the negative output
voltages caused by quickly discharging the output
through the inductor and low-side MOSFET. Both SMPS
controllers contain separate soft-shutdown circuits.
Fixed-Frequency, Current-Mode
PWM Controller
The heart of each current-mode PWM controller is a
multi-input, open-loop comparator that sums two sig-
nals: the output-voltage error signal with respect to the
reference voltage and the slope-compensation ramp
(Figure 3). The MAX17003A/MAX17004A use a direct-
summing configuration, approaching ideal cycle-to-
cycle control over the output voltage without a
traditional error amplifier and the phase shift associated
with it.
FROM FB
(SEE FIGURE 5)
SLOPE COMP
SOFT-START
REF
ON_
SKIP
GND
OSC
FSEL
TRI-LEVEL
DECODE
0.2 x VLIMIT
0.1 x V LIMIT
IDLE MODE
CURRENT
PEAK CURRENT
R
S
Q
DH DRIVER
ILIM
A = 1/10
LIMIT
A = 1.2
NEG CURRENT
LIMIT
S
CSH_
CSL_
ZERO
CROSSING
R
Q
DL DRIVER
PGND
DRVA
ONE-SHOT
OUTA
5V SMPS ONLY
Figure 3. PWM Controller Functional Diagram
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19
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相关代理商/技术参数
参数描述
MAX17003ETJ+ 功能描述:电压模式 PWM 控制器 Quad Out Main Power Supply Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel
MAX17003ETJ+T 功能描述:电压模式 PWM 控制器 Quad Out Main Power Supply Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel
MAX17004AETJ+ 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX17004ETJ+ 功能描述:电压模式 PWM 控制器 Quad Out Main Power Supply Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel
MAX17004ETJ+T 功能描述:电压模式 PWM 控制器 Quad Out Main Power Supply Controller RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel