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| 型号： | MAX15023ETG/V+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 24WQFN |
| 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： | 1MHz |
| 占空比： | 87.5% |
| 电源电压： | 4.5 V ~ 28 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 ~ 85°C |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
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EVALUATION KIT AVAILABLE
MAX15023
Wide 4.5V to 28V Input, Dual-Output
Synchronous Buck Controller
General Description
Features
The MAX15023 dual, synchronous step-down controller
operates from a 5.5V to 28V or 5V ±10% input voltage
range and generates two independent output voltages.
Each output is adjustable from 85% of the input voltage
down to 0.6V and supports loads of 12A or higher. Input
voltage ripple and total RMS input ripple current are
reduced by interleaved 180° out-of-phase operation.
The MAX15023 offers the ability to adjust the switching
frequency from 200kHz to 1MHz with an external resistor.
The MAX15023’s adaptive synchronous rectification elimi-
nates the need for external freewheeling Schottky diodes.
The device also utilizes the external low-side MOSFET’s
on-resistance as a current-sense element, eliminating the
need for a current-sense resistor. This protects the DC-
DC components from damage during output overloaded
conditions or output short-circuit faults without requiring a
current-sense resistor. Hiccup-mode current limit reduces
power dissipation during short-circuit conditions. The
MAX15023 includes two independent power-good out-
puts and two independent enable inputs with precise
turn-on/turn-off thresholds, which can be used for supply
monitoring and for power sequencing.
Additional protection features include cycle-by-cycle,
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5.5V to 28V or 5V ±10% Input Supply Range
0.6V to (0.85 x V IN ) Adjustable Outputs
Adjustable 200kHz to 1MHz Switching Frequency
Guaranteed Monotonic Startup into a Prebiased
Load
Lossless, Cycle-by-Cycle, Low-Side, Source Peak
Current Limit with Adjustable, Temperature-
Compensated Threshold
Cycle-by-Cycle, Low-Side, Sink Peak Current-
Limit Protection
Proprietary Adaptive Internal Digital Soft-Start
±1% Accurate Voltage Reference
Internal Boost Diodes
Adaptive Synchronous Rectification Eliminates
External Freewheeling Schottky Diodes
Hiccup-Mode Short-Circuit Protection and
Thermal Shutdown
Power-Good Outputs and Analog Enable Inputs
for Power Sequencing
Ordering Information
low-side, sink peak current limit, and thermal shutdown.
Cycle-by-cycle, low-side, sink peak current limit prevents
PART
MAX15023ETG+
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
24 TQFN-EP*
reverse inductor current from reaching dangerous levels
when the device is sinking current from the output. The
MAX15023 also allows prebiased startup without dis-
charging the output and features adaptive internal digital
soft-start. This new proprietary feature enables monoton-
ic charging of externally large output capacitors at start-
up, and achieves good control of the peak inductor
current during hiccup-mode short-circuit protection.
MAX15023ETG/V+ -40°C to +85°C 24 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Pin Configuration
TOP VIEW
The MAX15023 is available in a space-saving and ther-
mally enhanced 4mm x 4mm, 24-pin TQFN-EP pack-
age. The device operates over the -40°C to +85°C
RT 19
18
17
16
15
14
13
12
LX2
extended temperature range.
Applications
SGND 20
IN 21
11
10
BST2
DH2
Point-of-Load Regulators
LIM2 22
MAX15023
9
DH1
Set-Top Boxes
LCD TV Secondary Supplies
Switches/Routers
LIM1 23
COMP1 24
+
*EP
8
7
BST1
LX1
Power Modules
1
2
3
4
5
6
DSP Power Supplies
TQFN
*EXPOSED PAD (CONNECT TO GROUND).
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-4219; Rev 2; 3/11
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX15023EVKIT+ | 功能描述:电源管理IC开发工具 MAX15023 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 |
| MAX15024AATB/V+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX15024AATB/V+T | 功能描述:功率驱动器IC Single Low Side RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| MAX15024AATB+ | 制造商:Maxim Integrated Products 功能描述:SINGLE/DUAL, 16NS, HIGH SINK/SOURCE CURRENT GATE DRIVERS - Rail/Tube |
| MAX15024AATB+T | 功能描述:功率驱动器IC Single Low Side RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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