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參數(shù)資料
| 型號： | MAX1559ETE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 5-Output Power-Management IC For Low-Cost PDAs |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC16 |
| 封裝： | 4 X 4 MM, 0.8 MM HEIGHT, MO-220-WGGC, TQFN-16 |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 526K |
| 代理商： | MAX1559ETE |
General Description
The MAX1559 is a complete power-management chip
for low-cost personal digital assistants (PDAs) and
portable devices operating from a 1-cell lithium-ion
(Li+) or 3-cell NiMH battery. It includes all the regula-
tors, outputs, and voltage monitors necessary for small
PDAs while requiring a bare minimum of external com-
ponents. Featured are four linear regulators, a DC-DC
boost converter for LCD bias, a microprocessor reset
output, and low-battery shutdown in a miniature QFN
package. For a compatible Li+ charger for both USB
and AC adapter inputs, refer to the MAX1551*.
The four linear regulators feature PMOS pass elements
for efficient low-dropout operation. A MAIN LDO sup-
plies 3.3V at 500mA. A signal-detect (SD) card-slot out-
put supplies 3.3V at 400mA. The COR1 LDO outputs 1V
at 250mA, and the COR2 LDO supplies 1.8V at 30mA.
The SD output and COR2 LDO have pin-controlled
shutdown. For other output-voltage combinations, con-
tact Maxim.
The DC-DC boost converter features an on-board MOSFET
and True Shutdown when off. This means that during
shutdown, input power is disconnected from the induc-
tor so that the boost output falls to 0V rather than
remaining one diode drop below the input voltage.
A μP reset output clears when the MAIN LDO achieves
regulation to ensure an orderly start. Thermal shutdown
protects the die from overheating.
The MAX1559 operates from a 3.1V to 5.5V supply and
consumes 50mA of no-load supply current. It is pack-
aged in a 1.3W, 16-pin thin QFN with a power pad on
the underside of the package. The MAX1559 is speci-
fied for operation from -40°C to +85°C.
Applications
PDAs
Organizers
Cellular and Cordless Phones
MP3 Players
Hand-Held Devices
Features
o
Minimal External Components
o
3.3V, 500mA MAIN LDO
o
3.3V, 400mA SD Card Output
o
1V, 250mA Core LDO
o
1.8V, 30mA Second Core LDO
o
High-Efficiency LCD Boost
o
LCD 0V True Shutdown when Off
o
50μA Quiescent Current
o
3.1V to 5.5V Input Range
M
5-Output Power-Management IC For
Low-Cost PDAs
________________________________________________________________
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
MAX1559
MAIN
SDIG
SW
LX
LFB
GND
IN
SWIN
REF
ON
OFF
INPUT
3.1V TO 5.5V
ENSD
3.3V, 500mA
3.3V, 400mA
1.0V, 250mA
1.8V, 30mA
D1
LCD 20V,
1mA
ENC2
ENLCD
RESET OUT
RS
COR1
COR2
TO MAIN
SDIG
COR2
LCD
ON
OFF
ON
OFF
Typical Operating Circuit
19-2962; Rev 1; 10/03
EVALUATION KIT
AVAILABLE
PART
TEMP RANGE
-40
°
C to +85
°
C
PIN-PACKAGE
16 Thin QFN
MAX1559ETE
True Shutdown is a trademark of Maxim Integrated Products, Inc.
*
Protected by U.S. Patent #6,507,172.
Pin Configuration appears at end of data sheet.
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| MAX1559ETE-T | 功能描述:PMIC 解決方案 Complete PMIC for PDAs RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| MAX155ACPI | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX155ACPI+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 8Ch 250ksps 2.5V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX155ACWI | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX155ACWI+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 8Ch 250ksps 2.5V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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