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參數(shù)資料
| 型號： | MAX1761EEE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Replaced by TMS320VC5506 : Digital Signal Processor 100-LQFP |
| 中文描述： | SWITCHING CONTROLLER, 428 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, QSOP-16 |
| 文件頁數(shù)： | 1/23頁 |
| 文件大小： | 473K |
| 代理商： | MAX1761EEE |
General Description
The MAX1761 dual pulse-width-modulation (PWM),
step-down controller provides high efficiency, excellent
transient response, and high DC output accuracy in an
extremely compact circuit topology. These features are
essential for stepping down high-voltage batteries to
generate low-voltage CPU core, I/O, and chipset RAM
supplies in PC board area critical applications, such as
notebook computers and smart phones.
Maxim’s proprietary Quick-PWM quick-response,
constant-on-time PWM control scheme handles wide
input/output voltage ratios with ease and provides
“instant-on” response to load transients while maintain-
ing a relatively constant switching frequency.
The MAX1761 achieves high efficiency at reduced cost
by eliminating the current-sense resistor found in tradi-
tional current-mode PWMs. Efficiency is further
enhanced by its ability to drive large synchronous-recti-
fier MOSFETs. The MAX1761 employs a complemen-
tary MOSFET output stage, which reduces component
count by eliminating external bootstrap capacitors and
diodes.
Single-stage buck conversion allows this device to
directly step down high-voltage batteries for the highest
possible efficiency. Alternatively, two-stage conversion
(stepping down the +5V system supply instead of the
battery) at a higher switching frequency allows the mini-
mum possible physical size.
The MAX1761 is intended for CPU core, chipset,
DRAM, or other low-voltage supplies. The MAX1761 is
available in a 16-pin QSOP package. For applications
requiring greater output power, refer to the MAX1715
data sheet. For a single-output version, refer to the
MAX1762/MAX1791 data sheet.
________________________Applications
Notebooks and PDAs
Digital Cameras
Handy-Terminals
Smart Phones
1.8V/2.5V Logic and I/O Supplies
Features
o
Free-Running On-Demand PWM
o
Selectable Light-Load Pulse-Skipping Operation
o
±1% Total DC Error in Forced-PWM Mode
o
5V to 20V Input Range
o
Flexible Output Voltages
OUT1: Dual Mode Fixed 2.5V or 1V to 5.5V
Adjustable
OUT2: Dual Mode Fixed 1.8V or 1V to 5.5V
Adjustable
o
Output Undervoltage Protection
o
Complementary Synchronous Buck
o
No Current-Sense Resistor
o
4.65V at 25mA Linear Regulator Output
o
4μA V+ Shutdown Supply Current
o
5μA VL Shutdown Supply Current
o
950μA Quiescent Supply Current
o
Tiny 16-Pin QSOP Package
M
Small, Dual, High-Efficiency
Buck Controller for Notebooks
________________________________________________________________
Maxim Integrated Products
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
FB1
DH1
CS1
DL1
VL
GND
DL2
CS2
DH2
TOP VIEW
MAX1761
QSOP
OUT1
REF
ON1
ON2
V+
OUT2
FB2
Pin Configuration
19-1835; Rev 0; 10/00
EVALUATION KIT
AVAILABLE
Ordering Information
16 QSOP
PIN-PACKAGE
TEMP. RANGE
-40°C to +85°C
MAX1761EEE
PART
Quick-PWM and Dual Mode are trademarks of
Maxim Integrated Products.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1763 | 1.5A, Low-Noise, 1MHz, Step-Up DC-DC Converter |
| MAX1763EEE | 1.5A, Low-Noise, 1MHz, Step-Up DC-DC Converter |
| MAX1763EUE | Replaced by TMS320C6410 : Digital Signal Processors 68-PLCC -40 to 85 |
| MAX1765 | Replaced by TMS320C6410 : Digital Signal Processors 68-PLCC -40 to 85 |
| MAX1765EEE | 800mA, Low-Noise, Step-Up DC-DC Converter with 500mA Linear Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1761EEE+ | 功能描述:DC/DC 開關(guān)控制器 Dual Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1761EEE+T | 功能描述:DC/DC 開關(guān)控制器 Dual Buck Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1761EEE-T | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1761EVKIT | 功能描述:DC/DC 開關(guān)控制器 Evaluation Kit for the MAX1761 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1762EUB | 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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