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参数资料
| 型号： | MAX15002ATL+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/29页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM 40-TQFNEP |
| 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： | 2 |
| 频率 - 最大： | 2.2MHz |
| 电源电压： | 5.5 V ~ 23 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： | 40-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
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MAX15002
Dual-Output Buck Controller with
Tracking/Sequencing
Functional Diagrams (continued)
PWM CONTROLLER 2
EN/TRACK2
MAX15002
SEQ_
1.24V ON
1.12V OFF
CSP2
SEQ_
V REF
DOWN2
EN
CONFIG
EN1
SHDN
EN2
OVL
CONFIG
OVL_
CSN2
EN/
TRACK2
DIGITAL
SOFT-START
AND STOP
CLK2
V REF
VR2
SEL_
E/A
OVL2 RES
OVERLOAD
IMAX2 MANAGEMENT
CLK2
CURRENT-
LIMIT
SET
ILIM2
BST2
FB2
DH2
COMP2
R
SET
Q
LX2
DREG2
CPWM
DOMINANT
CLK2
RAMP
S
DL2
LEVEL
SHIFT
CLK2
0.925
x
V REF
PGPD2
PGND2
FB2
PGOOD2
Detailed Description
The MAX15002 is a dual-output, pulse-width-modulat-
ed (PWM), step-down, DC-DC controller with tracking
and sequencing options. The device operates over the
input voltage range of 5.5V to 23V or 5V ±10%. Each
PWM controller provides an adjustable output down to
0.6V and delivers at least 15A of load current with
excellent load and line regulation.
Each of the MAX15002 PWM sections utilizes a volt-
age-mode control scheme for good noise immunity and
offers external compensation allowing for maximum
flexibility with a wide selection of inductor values and
capacitor types. The device operates at a fixed switch-
ing frequency that is programmable from 200kHz to
2.2MHz and can be synchronized to an external clock
signal using the SYNC input. Each converter, operating
at up to 2.2MHz with 180° out-of-phase, increases the
input capacitor ripple frequency up to 4.4MHz, reduc-
ing the RMS input ripple current and the size of the
input bypass capacitor requirement significantly.
12
The MAX15002 provides Coincident Tracking,
Ratiometric Tracking, and Sequencing. This allows tai-
loring of the power-up/power-down sequence depend-
ing on the system requirements.
The MAX15002 features lossless valley-mode current-
limit protection by monitoring the voltage drop across
the synchronous MOSFET’s on-resistance to sense the
inductor current. The MAX15002 ’s internal current
source exhibits a positive temperature coefficient to help
compensate for the MOSFET’s temperature coefficient.
Use an external voltage-divider when a more precise
current limit is desired. This divider along with a preci-
sion shunt resistor allows for more accurate current limit.
The MAX15002 includes internal undervoltage lockout
with hysteresis, digital soft-start/soft-stop for glitch-free
power-up and power-down of the converter. The
power-on reset ( RESET ) with adjustable timeout period
monitors both outputs and provides a RESET signal to
the processor indicating when the outputs are within
regulation. Protection features include lossless valley-
mode current limit and hiccup mode output short-cir-
cuit protection.
Maxim Integrated
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相关代理商/技术参数 |
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| MAX15003ATM+ | 功能描述:DC/DC 开关控制器 Triple-Out Buck Ctlr w/Track/Sequence 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 |
| MAX15003ATM+T | 功能描述:DC/DC 开关控制器 Triple-Out Buck Ctlr w/Track/Sequence 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 |
| MAX15003EVKIT+ | 功能描述:电源管理IC开发工具 MAX15003 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 |
| MAX15004AAUE/V+ | 功能描述:电流型 PWM 控制器 Flyback/Boost/SEPIC Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| MAX15004AAUE/V+T | 功能描述:电流型 PWM 控制器 Flyback/Boost/SEPIC Power-Supply Ctlr RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
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