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參數(shù)資料
| 型號： | MAX15020 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 2A, 40V Step-Down DC-DC Converter with Dynamic Output-Voltage Programming |
| 中文描述： | 2A、40V降壓型DC-DC轉(zhuǎn)換器，可動態(tài)設(shè)置輸出電壓 |
| 文件頁數(shù)： | 1/19頁 |
| 文件大?。?/td> | 363K |
| 代理商： | MAX15020 |
General Description
The MAX15020 high-voltage step-down DC-DC con-
verter operates over an input voltage range of 7.5V to
40V. The device integrates a 0.2
high-side switch and
is capable of delivering 2A load current with excellent
load and line regulation. The output is dynamically
adjustable from 0.5V to 36V through the use of an exter-
nal reference input (REFIN). The MAX15020 consumes
only 6μA in shutdown mode.
The device utilizes feed-forward voltage-mode architec-
ture for good noise immunity in the high-voltage switch-
ing environment and offers external compensation for
maximum flexibility. The switching frequency is selec-
table to 300kHz or 500kHz and can be synchronized to
an external clock signal of 100kHz to 500kHz by using
the SYNC input. The IC features a maximum duty cycle
of 95% (typ) at 300kHz.
The device includes configurable undervoltage lockout
(UVLO) and soft-start. Protection features include
cycle-by-cycle current limit, hiccup-mode for output
short-circuit protection, and thermal shutdown. The
MAX15020 is available in a 20-pin TQFN 5mm x 5mm
package and is rated for operation over the
-40°C to +125°C temperature range.
Applications
Printer Head Driver Power Supply
Automotive Power Supply
Industrial Power Supply
Step-Down Power Supply
Features
o
Wide 7.5V to 40V Input Voltage Range
o
2A Output Current, Up to 96% Efficiency
o
Dynamic Programmable Output Voltage (0.5V to
36V)
o
Maximum Duty Cycle of 95% (typ) at 300kHz
o
100kHz to 500kHz Synchronizable SYNC
Frequency Range
o
Configurable UVLO and Soft-Start
o
Low-Noise, Voltage-Mode Step-Down Converter
o
Programmable Output-Voltage Slew Rate
o
Lossless Constant Current Limit with Fixed
Timeout to Hiccup Mode
o
Extremely Low-Power Consumption (< 6μA typ) in
Shutdown Mode
o
20-Pin (5mm x 5mm) Thin QFN Package
Ordering Information
M
2A, 40V Step-Down DC-DC Converter with
Dynamic Output-Voltage Programming
________________________________________________________________ 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
MAX15020
ON/OFF
IN
DVREG
V
OUT
(0.5V TO 36V)
LX
REFOUT
REFIN
EP
SS
PWM
INPUT
V
IN
(7.5V TO 40V)
BST
FB
COMP
SYNC GND FSEL PGND
REG
Typical Operating Circuit
19-0811; Rev 0; 4/07
EVALUATION KIT
AVAILABLE
+Denotes a lead-free package.
*EP = Exposed pad.
Pin Configuration appears at end of data sheet.
PART
TEMP RANGE
PIN-
PACKAGE
PKG
CODE
MAX15020ATP+
-40°C to +125°C
20 TQFN-EP*
(5mm x 5mm)
T2055-5
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX15020ATP+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 2A 40V Step-Down w/Dynamic Output-V RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX15020ATP+T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 2A 40V Step-Down w/Dynamic Output-V RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| MAX15020EVKIT+ | 功能描述:電源管理IC開發(fā)工具 MAX15020 Eval Kit RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX15021ATB+ | 功能描述:直流/直流開關(guān)調(diào)節(jié)器 DUAL 4A/2A RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5 |
| 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 |
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