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| 型号： | MAX15022ATI+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC REG QD BCK/LINEAR SYNC 28TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 拓扑： | 降压（降压）同步（2），线性（LDO）（2） |
| 功能： | 任何功能 |
| 输出数： | 4 |
| 频率 - 开关： | 500kHz ~ 4MHz |
| 电压/电流 - 输出 1： | 0.6 V ~ 5.5 V，4A |
| 电压/电流 - 输出 2： | 0.6 V ~ 5.5 V，2A |
| 电压/电流 - 输出 3： | 控制器 |
| 带 LED 驱动器： | 无 |
| 带监控器： | 无 |
| 带序列发生器： | 是 |
| 电源电压： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 管件 |
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ATION
EVALU
AVAILA
19-4107; Rev 1; 7/11
KIT
BLE
Dual, 4A/2A, 4MHz, Step-Down DC-DC
Regulator with Dual LDO Controllers
General Description
The MAX15022 is a dual-output, pulse-width-modulated
(PWM), step-down DC-DC regulator with dual LDO con-
trollers. The device operates from 2.5V to 5.5V and
each output can be adjusted from 0.6V to the input
supply (V AVIN ). The MAX15022 delivers up to 4A (regu-
lator 1) and 2A (regulator 2) of output current with two
LDO controllers that can be used to drive two external
PNP transistors to provide two additional outputs. This
device offers the ability to adjust the switching frequen-
cy from 500kHz to 4MHz and provides the capability of
optimizing the design in terms of size and performance.
The MAX15022 utilizes a voltage-mode control scheme
with external compensation to provide good noise
immunity and maximum flexibility in selecting inductor
values and capacitor types. The dual switching regula-
tors operate 180° out-of-phase, thereby reducing the
RMS input ripple current and thus the size of the input
bypass capacitor significantly.
The MAX15022 offers the ability to track (coincident or
ratiometric) or sequence during power-up and power-
down operation. When sequencing, it powers up glitch-
free into a prebiased output.
Additional features include an internal undervoltage
lockout with hysteresis and a digital soft-start/soft-stop
for glitch-free power-up and power-down. Protection
features include lossless cycle-by-cycle current limit,
hiccup-mode output short-circuit protection, and ther-
mal shutdown.
The MAX15022 is available in a space-saving, 5mm x
5mm, 28-pin TQFN-EP package and is specified for
operation from -40°C to +125°C temperature range.
Features
o 2.5V to 5.5V Input-Voltage Range
o Dual-Output Synchronous Buck Regulators
o Integrated Switches for 4A and 2A Output
Currents
o 180° Out-Of-Phase Operation
o Output Voltage Adjustable from 0.6V to V AVIN
o Two LDO Controllers
o Lossless, Cycle-by-Cycle Current Sensing
o External Compensation for Maximum Flexibility
o Digital Soft-Start and Soft-Stop for Tracking
Applications
o Digital Soft-Start into a Prebiased Load for
Sequencing Applications
o Sequencing or Coincident/Ratiometric Tracking
o Programmable Switching Frequency from 500kHz
to 4MHz
o Thermal Shutdown and Hiccup-Mode Short-
Circuit Protection
o 30μA Shutdown Current
o 100% Maximum Duty Cycle
o Space-Saving (5mm x 5mm) 28-Pin TQFN
Package
Pin Configuration
TOP VIEW
Applications
21
20
19
18
17
16
15
RFID Reader Cards
Power-over-Ethernet (PoE) IP Phones
Automotive Multimedia
B4 22
COMP2 23
FB2 24
14
13
12
FB3
B3
COMP1
Multivoltage Supplies
Networking/Telecom
EN2 25
SGND 26
MAX15022
11
10
FB1
EN1
Ordering Information
AVIN 27
RT 28
+
*EP
9
8
DVDD1
PGND1
PART
TEMP RANGE
PIN-PACKAGE
1
2
3
4
5
6
7
MAX15022ATI+
MAX15022ATI/V+
-40°C to +125°C
-40°C to +125°C
28 TQFN-EP*
28 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
/V denotes an automotive qualified part.
*EP = EXPOSED PAD.
THIN QFN
(5mm x 5mm)
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX15022ATI+ | 功能描述:直流/直流开关调节器 Dual 4A/2A 4MHz w/Dual LDO Ctlr RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX15022ATI+T | 功能描述:直流/直流开关调节器 Dual 4A/2A 4MHz w/Dual LDO Ctlr RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX15022EVKIT+ | 功能描述:电源管理IC开发工具 MAX15022 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 |
| MAX15023ETG/V+ | 功能描述:DC/DC 开关控制器 4.5-28V Input Dual Out Synch Buck 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 |
| MAX15023ETG/V+T | 功能描述:DC/DC 开关控制器 4.5-28V Input Dual Out Synch Buck 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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