參數(shù)資料
型號(hào)： MAX848
廠商： Maxim Integrated Products, Inc.
元件分類： DC/DC變換器
英文描述： Low-Noise, Step-Up DC-DC Converters(高功率，低噪，帶0.5AMOSFET功率開關(guān),步升DC-DC變換器)
中文描述： 1至3節(jié)電池、大功率、低噪聲、升壓型DC-DC轉(zhuǎn)換器
文件頁數(shù)： 2/16頁
文件大小： 192K
代理商： MAX848
mA
M
1-Cell to 3-Cell, High-Power,
Low-Noise, S tep-Up DC-DC Converters
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ON1,
ON2
, OUT, POUT to GND..................................-0.3V, +6V
PGND to GND ..........................................................-0.3V, +0.3V
LX to PGND ...............................................-0.3V, (V
POUT
+ 0.3V)
CLK/SEL, DATA, POKIN, REF,
AINSEL, AIN1, AIN2, FB, POK to GND .....-0.3V, (V
OUT
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
Narrow SO (derate 8.7mW/°C above +70°C) ................696mW
ELECTRICAL CHARACTERISTICS
(V
OUT
= 3.6V, GND = PGND = CLK/SEL = ON1 =
ON2
= AINSEL = AIN1 = AIN2 = FB = POKIN, POUT = OUT,
T
A
= 0°C to +85°C
,
unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Operating Temperature Range
MAX848ESE/MAX849ESE .................................-40°C to +85°C
J unction Temperature......................................................+150°C
Storage Temperature.........................................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
110
300
70
200
200
750
130
500
250
600
150
800
300
V
IN
= 1.2V
V
OUT
= 5V
mA
1000
1.240
Output Current
V
IN
= 2.4V
I
REF
= 0mA
-1μA < I
REF
< 50μA
2.5V < V
OUT
< 5V
V
IN
= 2.7V
μA
4
20
Operating Current in Shutdown
kHz
40
300
Frequency in Start-Up Mode
V
0.9
1.1
Minimum Start-Up Voltage (Note 5)
%
-1.6
(Note 3)
CLK/SEL = OUT
Load Regulation (Note 4)
V
1.23
1.25
5
0.2
1.27
15
5
Reference Output Voltage
REF Load Regulation
REF Supply Rejection
Current into OUT pin, V
ON2
= 3.6
V
0.7
V
OUT
= 1.5V
Minimum Operating Voltage (Note 1)
V
2.1
2.4
V
FB
= 1.25V
Output Voltage Lockout Range
V
2.7
5.5
Adjustable output, CLK/SEL = OUT
Output Voltage Adjust Range
nA
200
FB Input Current
V
1.215
1.265
FB Regulation Voltage
mV
mV
I
LOAD
< mA, T
A
> +25°C
V
FB
< 0.1V, CLK/SEL = OUT
V
3.17
3.34
3.40
Output Voltage (Note 2)
UNITS
MIN
TYP
MAX
PARAMETER
MAX848
MAX849
MAX848
MAX849
MAX848
MAX849
MAX848
MAX849
MAX848
MAX849
MAX848
MAX849
CONDITIONS
V
OUT
= 3.3V
V
OUT
= 5V
V
OUT
= 3.3V
MAX849, V
IN
= 3.6V
V
OUT
= 5V
V
OUT
= 3.3V
V
OUT
= 5V
MAX848, V
IN
= 3.3V
DC-DC CONVERTER
REFERENCE
相關(guān)PDF資料
PDF描述
MAX849 Low-Noise, Step-Up DC-DC Converters(高功率，低噪，帶0.5AMOSFET功率開關(guān),步升DC-DC變換器)
MAX8530 Dual Low-Dropout Linear Regulators with RESETor Low-Noise Output in UCSP or QFN
MAX8530EBT Dual Low-Dropout Linear Regulators with RESETor Low-Noise Output in UCSP or QFN
MAX8530ETT Dual Low-Dropout Linear Regulators with RESETor Low-Noise Output in UCSP or QFN
MAX8531 Dual Low-Dropout Linear Regulators with RESETor Low-Noise Output in UCSP or QFN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX848ESE 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1-3 Cell 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
MAX848ESE+ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1-3 Cell 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
MAX848ESE+T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1-3 Cell 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
MAX848ESE-T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1-3 Cell 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
MAX849ESE 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 1-3 Cell 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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