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参数资料
| 型号： | MAX15021ATI+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/24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： | 是 |
| 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
ABSOLUTE MAXIMUM RATINGS
AVIN, PVIN_, DVDD_, EN_, FB_, RT,
SEL to SGND .........................................................-0.3V to +6V
COMP_ to SGND .....................................-0.3V to (V AVIN + 0.3V)
PGND_ to SGND ...................................................-0.3V to +0.3V
LX_ Current (Note 1)
Regulator 1...............................................................................6A
Regulator 2...............................................................................3A
Current into Any Pin other than PVIN_,
Continuous Power Dissipation (T A = +70°C)
28-Pin TQFN (derate 34.5mW/°C above +70°C) .....2758.6mW
Junction-to-Case Thermal Resistance ( θ JC )(Note 2) .........2°C/W
Junction-to-Ambient Thermal Resistance ( θ JA )(Note 2) ..29°C/W
Operating Temperature Range .........................-40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
LX_, and PGND_ ..............................................................50mA
Note 1: LX_ has internal diodes to PGND_ and PVIN_. Applications that forward bias these diodes should take care not to exceed
the IC’s package power dissipation.
Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations see www.maximintegrated.com/thermal-tutorial .
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V AVIN = V PVIN_ = V DVDD_ = 3.3V, V PGND_ = V SGND_ = 0V, R T = 25k Ω , and T A = T J = -40°C to +125°C, unless otherwise noted.
Typical values are at T A = +25°C.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SYSTEM SPECIFICATIONS
Input-Voltage Range
V AVIN = V PVIN1 = V PVIN2 = V DVDD1 =
V DVDD2
2.5
5.5
V
Undervoltage Lockout Threshold
AVIN rising
2.1
2.2
2.3
V
Undervoltage Lockout Hysteresis
0.12
V
Operating Supply Current
Shutdown Supply Current
V EN_ = 1.3V, V FB_ = 0.8V
V EN_ = 0V
3.5
20
6
65
mA
μA
PWM DIGITAL SOFT-START/SOFT-STOP
Soft-Start/Soft-Stop Duration
Reference Voltage Steps
PWM ERROR AMPLIFIERS
4096
64
Clock
Cycles
Steps
FB1, FB2 Input Bias Current
-1
+1
μA
FB1, FB2 Voltage Set-Point
0.593
0.599
0.605
V
COMP1, COMP2 Voltage Range
Error-Amplifier Open-Loop Gain
Error-Amplifier Unity-Gain Bandwidth
I COMP _ = -250μA to +250μA
0.3
80
12
V AVIN - 0.5
V
dB
MHz
POWER MOSFETs
Regulator 1 p-Channel MOSFET R DSON
Regulator 1 n-Channel MOSFET R DSON
Regulator 1 Gate Charge
Maximum LX1 RMS Current
Regulator 2 p-Channel MOSFET R DSON
Regulator 2 n-Channel MOSFET R DSON
Regulator 2 Gate Charge
Maximum LX2 RMS Current
V DVDD1 = 5V
V DVDD1 = 5V
V DVDD1 = 5V
V DVDD2 = 5V
V DVDD2 = 5V
V DVDD2 = 5V
50
30
8
4
100
60
4
2
90
50
180
100
m Ω
m Ω
nC
A
m Ω
m Ω
nC
A
2
Maxim Integrated
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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 |
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