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参数资料
型号： MAX15046AAEE+T
厂商： Maxim Integrated Products
文件页数： 20/24页
文件大小： 0K
描述： IC REG CTRLR BUCK PWM VM 16-QSOP
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 2,500
PWM 型： 电压模式
输出数： 1
频率 - 最大： 1.1MHz
占空比： 87.5%
电源电压： 4.5 V ~ 40 V
降压： 是
升压： 无
回扫： 无
反相： 无
倍增器： 无
除法器： 无
Cuk： 无
隔离： 无
工作温度： -40°C ~ 125°C
封装/外壳： 16-SSOP（0.154"，3.90mm 宽）
包装： 带卷 (TR)
MAX15046
40V, High-Performance, Synchronous
Buck Controller
PCB Layout Guidelines
Careful PCB layout is critical to achieve clean and stable
operation. The switching power stage requires particular
attention. Follow these guidelines for good PCB layout:
1) Place decoupling capacitors as close as possible to
the IC. Connect the power ground plane (connected
to PGND) and signal ground plane (connected to
GND) at one point near the device.
2) Connect input and output capacitors to the power
ground plane; connect all other capacitors to the sig-
nal ground plane.
3) Keep the high-current paths as short and wide as
possible. Keep the path of switching current (C2 to
IN and C2 to PGND) short. Avoid vias in the switching
paths.
4) Connect CSP to the drain of the low-side FET using a
Kelvin connection for accurate current-limit sensing.
5) Ensure all feedback connections are short and direct.
Place the feedback resistors as close as possible to the
IC.
6) Route high-speed switching nodes (BST, LX, DH, and
DL) away from sensitive analog areas (RT, FB, COMP,
and LIM).
20
24V Supply, 3.3V Output Operation
Typical Application Circuit 1 in the Typical Application
Circuits section shows an application circuit that oper-
ates out of 24V and outputs up to 10A at 3.3V. R5 sets
the switching frequency to 350kHz.
Single 4.5V to 5.5V Supply Operation
Typical Application Circuit 2 in the Typical Application
Circuits section shows an application circuit for a single
+4.5V to +5.5V power-supply operation.
Auxiliary 5V Supply Operation
Typical Application Circuit 3 in the Typical Application
Circuits section shows an application circuit for a +24V
supply to drive the external MOSFETs and an auxiliary
+5V supply to power the device
Maxim Integrated
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相关代理商/技术参数
参数描述
MAX15046AEEE+ 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MAX15046AEEE+T 功能描述:DC/DC 开关控制器 RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MAX15046BAEE+ 功能描述:DC/DC 开关控制器 40V Synchronous Buck Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
MAX15046BAEE+ 制造商:Maxim Integrated Products 功能描述:IC, SYNC STEP-DOWN CONTROLLER, QSOP-16
MAX15046BAEE+T 功能描述:DC/DC 开关控制器 40V Synchronous Buck Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
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