參數(shù)資料
型號(hào)： MAX1722
廠商： Maxim Integrated Products, Inc.
元件分類： 數(shù)字信號(hào)處理
英文描述： Replaced by TMS320VC5506 : Digital Signal Processors 132-BQFP -40 to 85
中文描述： 1.5µA IQ、升壓型DC-DC轉(zhuǎn)換器，薄型SOT23-5封裝
文件頁(yè)數(shù)： 1/12頁(yè)
文件大?。?/td> 292K
代理商： MAX1722
General Description
The MAX1722/MAX1723/MAX1724 compact, high-effi-
ciency, step-up DC-DC converters are available in tiny, 5-
pin thin SOT23 packages. They feature an extremely low
1.5μA quiescent supply current to ensure the highest pos-
sible light-load efficiency. Optimized for operation from
one to two alkaline or nickel-metal-hydride (NiMH) cells, or
a single Li+ cell, these devices are ideal for applications
where extremely low quiescent current and ultra-small size
are critical.
Built-in synchronous rectification significantly improves
efficiency and reduces size and cost by eliminating the
need for an external Schottky diode. All three devices fea-
ture a 0.5
N-channel power switch. The MAX1722/
MAX1724 also feature proprietary noise-reduction circuitry,
which suppresses electromagnetic interference (EMI)
caused by the inductor in many step-up applications. The
family offers different combinations of fixed or adjustable
outputs, shutdown, and EMI reduction (see
Selector
Guide
).
Applications
Single-Cell Battery-
Powered Devices
Low-Power Hand-Held
Instruments
MP3 Players
Personal Digital
Assistants (PDA)
Features
o
Up to 90% Efficiency
o
No External Diode or FETs Needed
o
1.5μA Quiescent Supply Current
o
0.1μA Logic-Controlled Shutdown
o
±1% Output Voltage Accuracy
o
Fixed Output Voltage (MAX1724) or Adjustable
Output Voltage (MAX1722/MAX1723)
o
Up to 150mA Output Current
o
0.8V to 5.5V Input Voltage Range
o
0.91V Guaranteed Startup (MAX1722/MAX1724)
o
Internal EMI Suppression (MAX1722/MAX1724)
o
Thin SOT23-5 Package (1.1mm max Height)
Ordering Information
M
1.5μA I
Q
, Step-Up DC-DC Converters
in Thin SOT23-5
________________________________________________________________
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
GND
OUT
FB
1
5
LX
BATT
MAX1722
THIN SOT23-5
TOP VIEW
2
3
4
LX
OUT
IN
0.8V TO 5.5V
3.3V AT
UP TO 150mA
ON
OFF
BATT
MAX1724
SHDN
GND
10
μ
H
OUT
Typical Operating Circuit
19-1735; Rev 0; 7/01
Selector Guide
Pagers
Remote Controls
Remote Wireless
Transmitters
Personal
Medical Devices
Digital Still Cameras
Pin Configurations are continued at end of data sheet.
PART
MAX1722EZK
MAX1723EZK
MAX1724EZK27
MAX1724EZK30
MAX1724EZK33
MAX1724EZK50
Fixed 2.7
Fixed 3.0
Adjustable
Adjustable
OUTPUT (V)
SHDN
No
Yes
Yes
Yes
Yes
Yes
Fixed 5.0
Pin Configurations
Fixed 3.3
LX
DAMPING
Yes
No
Yes
Yes
Yes
Yes
ADQK
ADQJ
ADQI
ADQH
ADQG
ADQF
TOP
MARK
5 SOT23
5 SOT23
5 SOT23
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
MAX1724EZK50-T
MAX1724EZK33-T
MAX1724EZK30-T
5 SOT23
5 SOT23
5 SOT23
PIN-
PACKAGE
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
MAX1724
EZK27-T
MAX1723
EZK-T
MAX1722
EZK-T
PART
相關(guān)PDF資料
PDF描述
MAX1722EZK Replaced by TMS320VC5506 : Digital Signal Processors 100-LQFP 0 to 0
MAX1723 Replaced by TMS320VC5506 : Digital Signal Processors 100-LQFP 0 to 0
MAX1723EZK Replaced by TMS320VC5506 : Digital Signal Processors 132-BQFP 0 to 0
MAX1724 Replaced by TMS320VC5506 : Digital Signal Processors 132-BQFP -40 to 85
MAX1723EZK-T 1.5uA IQ, Step-Up DC-DC Converters in Thin SOT23-5
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1722EUK-T 制造商:Maxim Integrated Products 功能描述:- Tape and Reel
MAX1722EZK 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX1722EZK+ 制造商:Maxim Integrated Products 功能描述:CONV DC-DC SGL-OUT STEP UP 5PIN TSOT-23 - Rail/Tube
MAX1722EZK+T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.5uA IQ Step-Up DC/DC Converter 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(fēng)格:SMD/SMT
MAX1722EZK-T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1.5uA IQ Step-Up DC/DC Converter 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(fēng)格:SMD/SMT
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