- 您现在的位置：买卖IC网 > PDF目录1836 > MAX15049ETJ+ (Maxim Integrated Products)IC CTRLR PWM STP-DN TRIPL 32WQFN PDF资料下载
参数资料
| 型号： | MAX15049ETJ+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/31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页第10页当前第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 Description (continued)
PIN
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
—
Maxim Integrated
NAME
PGOOD
COMP1
FB1
EN1
BST1
DH1
LX1
DREG1
DL1
PGND1
COMP3
FB3
EN3
BST3
DH3
LX3
DREG3
DL3
PGND3
IN
REG
EP
FUNCTION
Controller Power-Good Output. Pull up PGOOD with a resistor to a positive voltage below 5.5V.
For the MAX15048, PGOOD output releases when all three V FB_ voltages are above 0.55V. For the
MAX15049, PGOOD output releases when all three controllers are out of prebias and all three V FB_
voltages are above 0.55V.
Controller 1 Transconductance Error-Amplifier Output. Connect COMP1 to the compensation
feedback network of output 1.
Controller 1 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 FB1 voltage regulates to 0.6V (typ).
Controller 1 Enable Input. For tracking (MAX15048), EN1 must be above 0.6V, V EN-TH , for the PWM
controller to start outputs 1, 2, and 3. Controller 1 is the master. Use the master as the highest output
voltage in a coincident tracking configuration. For the MAX15049, EN1 must be above 0.6V for the
PWM controller to start output 1.
Controller 1 High-Side Gate-Driver Supply. Connect a 0.1 F F ceramic capacitor from BST1 to LX1.
Controller 1 High-Side Gate-Driver Output. DH1 drives the gate of the high-side MOSFET.
Controller 1 High-Side MOSFET Source Connection/Synchronous MOSFET Drain Connection.
Connect the inductor and the negative side of the boost capacitor to LX1.
Controller 1 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 DREG1 to PGND1.
Controller 1 Low-Side Gate-Driver Output. DL1 is the gate-driver output for the synchronous MOSFET.
Controller 1 Power Ground. Connect the input filter capacitor’s negative terminal, the source of the
synchronous MOSFET, and the output filter capacitor’s return to PGND1. Connect to SGND at a
single point near the input capacitor return terminal.
Controller 3 Transconductance Error-Amplifier Output. Connect COMP3 to the compensation
feedback network of output 3.
Controller 3 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 FB3 voltage regulates to 0.6V (typ).
Controller 3 Enable/Tracking Input. See Figure 2. When tracking (MAX15048), connect the same
resistive voltage-divider used for FB3 from output 1 to EN3 to SGND for coincident tracking. Connect
EN3 to analog ground for ratiometric tracking. When sequencing (MAX15049), EN3 must be above
0.6V for PWM controller 3 to start.
Controller 3 High-Side Gate-Driver Supply. Connect a 0.1 F F ceramic capacitor from BST3 to LX3.
Controller 3 High-Side Gate-Driver Output. DH3 drives the gate of the high-side MOSFET.
Controller 3 High-Side MOSFET Source Connection/Synchronous MOSFET Drain Connection.
Connect the inductor and the negative side of the boost capacitor to LX3.
Controller 3 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 DREG3 to PGND3.
Controller 3 Low-Side Gate-Driver Output. DL3 is the gate-driver output for the synchronous MOSFET.
Controller 3 Power Ground. Connect the input filter capacitor’s negative terminal, the source of the
synchronous MOSFET, and the output filter capacitor’s return to PGND3.
Supply Input Connection. Connect to an external voltage source from 4.7V to 23V. For 4.5V to 5.5V
input applications, connect IN and REG together.
5V Regulator Output. Bypass with a 2.2 F F ceramic capacitor to SGND.
Exposed Pad. Solder the exposed pad to a large SGND plane to improve thermal dissipation.
11
相关PDF资料 |
PDF描述 |
|---|---|
| MAX15053AEWL+T | IC REG BUCK SYNC ADJ 2A 9WLP |
| MAX15058EWL+T | IC REG BUCK SYNC ADJ 3A 9WLP |
| MAX15059BETE+ | IC REG CONV 76V APD 16TQFN |
| MAX15061ATE+ | IC BOOST CONV/CURR MON 16-TQFN |
| MAX15066EWE+T | IC REG BUCK SYNC ADJ 4A 16WLP |
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 |
发布紧急采购，3分钟左右您将得到回复。