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參數資料
| 型號： | MAX5043ETN |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | Two-Switch Power ICs with Integrated Power MOSFETs and Hot-Swap Controller |
| 中文描述： | SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PQCC56 |
| 封裝： | 8 X 8 MM, 0.8 MM HEIGHT, MO-220-WLLB, TQFN-56 |
| 文件頁數： | 1/22頁 |
| 文件大小： | 335K |
| 代理商： | MAX5043ETN |
General Description
The MAX5042/MAX5043 isolated multimode PWM power
ICs feature integrated switching power MOSFETs con-
nected in a voltage-clamped, two-transistor, power-circuit
configuration. These devices operate from a wide 20V to
76V input voltage range. The MAX5042 includes a hot-
swap controller for use with an external power MOSFET to
limit inrush current for applications where the power sup-
ply is plugged into a live power backplane. The MAX5043
does not include a hot-swap controller.
The voltage-clamped power topology of the MAX5042/
MAX5043 enables full recovery of stored magnetizing
and leakage inductive energy for enhanced efficiency
and reliability. Operating at up to 500kHz switching fre-
quency, these devices provide up to 50W of output
power. The MAX5042/MAX5043 allow the implementa-
tion of both forward and flyback voltage or current-mode
converter topologies. A dedicated latched external shut-
down provides protection in addition to internal thermal
shutdown.
The MAX5042/MAX5043 achieve higher efficiency when
used with secondary-side synchronous rectification.
These devices generate a look-ahead signal for driving
secondary-side synchronous rectifiers.
The MAX5042/MAX5043 are rated for operation over the
-40°C to +125°C and -40°C to +85°C temperature
range, respectively, and are available in a small surface-
mount 56-pin thin QFN package.
Warning: The MAX5042/MAX5043 are designed to
work with high voltages. Exercise caution.
Applications
High-Efficiency Telecom/Datacom Power
Supplies
Router/Switch Cards with 48V Backplane Power
Systems
Servers with 48V Backplane Power Systems
xDSL Line Cards
xDSL Line-Driver Power Supplies
Distributed Power Systems with 48V Bus
42V Automotive Power Supplies
Power-Supply Modules
Features
Reliable Single-Stage Clamped Two-Switch Power
ICs for High Efficiency
No Reset Winding Required
Up to 50W Output Power
Integrated High-Voltage 75m
Power MOSFETs
20V to 76V Wide Input Voltage Range
Feed-Forward Voltage or Current-Mode Control
Programmable Brownout Undervoltage Lockout
Integrated Current Signal Amplifier for High-
Efficiency, Current-Mode Control
Internal Overtemperature Shutdown
Indefinite Short-Circuit Protection
Integrated Thermally Protected High-Voltage
Startup Linear Regulator
Integrated Hot-Swap Controller (MAX5042)
Integrated Look-Ahead Signal Output Drives
High-Speed Optocoupler for Secondary-Side
Synchronous Rectification
>90% Efficiency with Synchronous Rectification
Up to 500kHz Switching Frequency
High-Power, Small-Footprint 56-Pin Thermally
Enhanced QFN Package
M
Two-Switch Power ICs with Integrated
Power MOSFETs and Hot-Swap Controller
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
Ordering Information
19-3046; Rev 2; 6/04
EVALUATION KIT
AVAILABLE
Pin Configurations appear at end of data sheet.
PART
TEMP RANGE
-40°C to +125°C
-40°C to +85°C
PIN-PACKAGE
56 Thin QFN
56 Thin QFN
MAX5042
ATN
MAX5043
ETN
Selector Guide
PART
DESCRIPTION
MAX5042
Two-Switch Power IC with Integrated Power
MOSFETs and Hot-Swap Controller for Isolated
Power Supplies
MAX5043
Two-Switch Power IC with Integrated Power
MOSFETs for Isolated Power Supplies
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5043ETN+ | 功能描述:開關變換器、穩壓器與控制器 Two-Switch Power IC w/Power MOSFET RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX5043ETN+T | 功能描述:開關變換器、穩壓器與控制器 Two-Switch Power IC w/Power MOSFET RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX5043ETN-T | 功能描述:開關變換器、穩壓器與控制器 Two-Switch Power IC w/Power MOSFET RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX5048 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:7.6A, 12ns, SOT23 MOSFET Driver |
| MAX5048_05 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:7.6A, 12ns, SOT23/TDFN, MOSFET Driver |
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