参数资料
型号: MAX15021ATI+
厂商: Maxim Integrated Products
文件页数: 1/24页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ DL 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
类型: 降压(降压)
输出类型: 可调式
输出数: 2
输出电压: 0.6 V ~ 5.5 V
输入电压: 2.5 V ~ 5.5 V
PWM 型: 电压模式
频率 - 开关: 500kHz ~ 4MHz
电流 - 输出: 2A,4A
同步整流器:
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
包装: 管件
供应商设备封装: 28-TQFN-EP(5x5)
MAX15021
Dual, 4A/2A, 4MHz, Step-Down DC-DC
Regulator with Tracking/Sequencing Capability
General Description
The MAX15021 is a dual-output, pulse-width-modulated
(PWM), step-down DC-DC regulator with tracking (coin-
cident and ratiometric) and sequencing options. 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
MAX15021 delivers up to 4A (regulator 1) and 2A (reg-
ulator 2) of output current. This device offers the ability
to adjust the switching frequency from 500kHz to 4MHz
and provides the capability of optimizing the design in
terms of size and performance.
The MAX15021 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 MAX15021 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 MAX15021 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
? 2.5V to 5.5V Input-Voltage Range
? Dual-Output Synchronous Buck Regulators
? Integrated Switches for 4A and 2A Output
Currents
? 180° Out-Of-Phase Operation
? Output Voltage Adjustable from 0.6V to V AVIN
? Lossless, Cycle-by-Cycle Current Sensing
? External Compensation for Maximum Flexibility
? Digital Soft-Start and Soft-Stop for Tracking
Applications
? Digital Soft-Start into a Prebiased Load for
Sequencing Applications
? Sequencing or Coincident/Ratiometric Tracking
? Programmable Switching Frequency from 500kHz
to 4MHz
? Thermal Shutdown and Hiccup-Mode Short-
Circuit Protection
? 20μA Shutdown Current
? 100% Maximum Duty Cycle
? 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
N.C. 22
COMP2 23
14
13
N.C.
N.C.
Automotive Multimedia
Multivoltage Supplies
FB2 24
EN2 25
MAX15021
12
11
COMP1
FB1
Networking/Telecom
Ordering Information
SGND 26
AVIN 27
RT 28
+
*EP
10
9
8
EN1
DVDD1
PGND1
PART
TEMP RANGE
PIN-PACKAGE
1
2
3
4
5
6
7
MAX15021ATI/V+
-40°C to +125°C
28 TQFN-EP*
+Denotes a lead-free package.
*EP = Exposed pad.
/V denotes an automotive qualified part.
*EP = EXPOSED PAD.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-4106; Rev 1; 8/12
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相关代理商/技术参数
参数描述
MAX15021ATI/V+ 制造商:Maxim Integrated Products 功能描述:DUAL, 4A/2A, 4MHZ, STEP-DOWN DC-DCREGULATOR WITH TRACKING/SE - Rail/Tube
MAX15021ATI/V+T 制造商:Maxim Integrated Products 功能描述:DUAL, 4A/2A, 4MHZ, STEP-DOWN DC-DCREGULATOR WITH TRACKING/SE - Tape and Reel
MAX15021ATI+ 功能描述:直流/直流开关调节器 Dual 4A/2A 4MHz w/Tracking/Seq 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
MAX15021ATI+T 功能描述:直流/直流开关调节器 Dual 4A/2A 4MHz w/Tracking/Seq 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
MAX15021EVKIT+ 功能描述:电源管理IC开发工具 MAX15021 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