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参数资料
| 型号： | MAX15049ETJ+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/31页 |
| 文件大小： | 0K |
| 描述： | IC CTRLR PWM STP-DN TRIPL 32WQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 应用： | 电源控制器，序列发生器 |
| 电源电压： | 4.7 V ~ 23 V |
| 电流 - 电源： | 6mA |
| 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： | 管件 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页当前第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页
MAX15048/MAX15049
Triple-Output Buck Controllers
with Tracking/Sequencing
Pin Configuration
TOP VIEW
24
23
22
21
20
19
18
17
BST3 25
DH3 26
LX3 27
16
15
14
BST1
EN1
FB1
DREG3 28
DL3 29
PGND3 30
MAX15048
MAX15049
13
12
11
COMP1
PGOOD
COMP2
IN 31
REG 32
+
EP*
10
9
FB2
EN2
1
2
3
4
5
6
7
8
TQFN
(5mm × 5mm)
*EXPOSED PAD.
Pin Description
10
PIN
1
2
3
4
5
6
7
8
9
10
11
NAME
RT
SGND
PGND2
DL2
DREG2
LX2
DH2
BST2
EN2
FB2
COMP2
FUNCTION
Oscillator Timing Resistor Connection. Connect a 15.6k I to 93.75k I resistor from RT to SGND to
program the switching frequency from 200kHz to 1.2MHz.
Analog Ground. Connect SGND and PGND_ together at one point near the input bypass capacitor
return terminal.
Controller 2 Power Ground. Connect the input filter capacitor’s negative terminal, the source of the
synchronous MOSFET, and the output filter capacitor’s return to PGND2.
Controller 2 Low-Side Gate-Driver Output. DL2 is the gate-driver output for the synchronous MOSFET.
Controller 2 Low-Side Gate-Driver Supply. Connect externally to REG through a 1 I to 4.7 I resistor.
Connect a minimum of 0.22 F F ceramic capacitor from DREG2 to PGND2.
Controller 2 High-Side MOSFET Source Connection/Synchronous MOSFET Drain Connection.
Connect the inductor and the negative side of the boost capacitor to LX2.
Controller 2 High-Side Gate-Driver Output. DH2 drives the gate of the high-side MOSFET.
Controller 2 High-Side Gate-Driver Supply. Connect a 0.1 F F ceramic capacitor from BST2 to LX2.
Controller 2 Enable/Tracking Input. See Figure 2. When tracking (MAX15048), connect the same
resistive voltage-divider used for FB2 from output 1 to EN2 to SGND for coincident tracking. Connect
EN2 to analog ground for ratiometric tracking. When sequencing (MAX15049), EN2 must be above
0.6V for PWM controller 2 to start.
Controller 2 Feedback Regulation Point. Connect to the center tap of a resistive voltage-divider from
the converter output to SGND to set the output voltage. The FB2 voltage regulates to 0.6V (typ).
Controller 2 Transconductance Error-Amplifier Output. Connect COMP2 to the compensation
feedback network of output 2.
Maxim Integrated
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX15049ETJ+ | 功能描述:DC/DC 开关控制器 1.2MHz Triple Buck w/Tracking 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 |
| MAX15049ETJ+ | 制造商:Maxim Integrated Products 功能描述:IC BUCK CNTRL TRIPLE 32WQFN 制造商:Maxim Integrated Products 功能描述:IC, BUCK, CNTRL, TRIPLE, 32WQFN |
| MAX15049ETJ+ | 制造商:Maxim Integrated Products 功能描述:IC PWM STEP-DOWN DC/DC CONVER |
| MAX15049ETJ+T | 功能描述:DC/DC 开关控制器 1.2MHz Triple Buck w/Tracking 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 |
| MAX15049EVKIT+ | 功能描述:电源管理IC开发工具 MAX15049 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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