參數(shù)資料
型號： MAX1643EUA
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： High-Efficiency, Step-Up DC-DC Converters for 1V Inputs
中文描述： 1 A SWITCHING REGULATOR, PDSO8
封裝： 1.10 MM HEIGHT, ULTRA SMALL, UMAX-8
文件頁數(shù)： 2/12頁
文件大小： 130K
代理商： MAX1643EUA
M
High-Effic ienc y, S tep-Up
DC-DC Converters for 1V Inputs
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
BATT to GND ...........................................................-0.3V to 6.0V
BATT Forward Current..........................................................0.5A
OUT to GND.............................................................-0.3V to 6.0V
OUT, LX Current.......................................................................1A
LX to GND................................................................-0.3V to 6.0V
SHDN
, FB,
BATTLO
,
PFO
to GND...........................-0.3V to 6.0V
PFI to GND ............................................................-0.3V to V
BATT
Reverse Battery Current (T
A
= +25°C) (Note 1) ...............220mA
Continuous Power Dissipation
μMAX (derate 4.1mW/°C above 70°C)..........................330mW
Operating Temperature Range
MAX1642EUA/MAX1643EUA ............................-40°C to +85°C
J unction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +165°C
Lead Temperature (soldering, 10sec) .............................+300°C
R
L
= 3k
, T
A
= +25°C
V
FB
= 1.3V
Falling PFI, hysteresis = 1%
V
PFI
= 650mV
I
LOAD
= 20mA
V
BATT
= 1.0V (MAX1642)
0.9V < V
BATT
< 1.5V (t
ON
= K / V
BATT
)
0.9V < V
BATT
< 1.5V, V
OUT
= 3.3V
V
OUT
= 3.5V (MAX1642)
I
DIODE
= 100mA, P-channel switch off
V
OUT
= 3.3V
V
FB
< 0.1V
External feedback
External feedback
V
OUT
= 3.3V
V
OUT
= 3.5V
CONDITIONS
nA
mV
nA
10
632
10
FB Input Current
PFI Trip Voltage
PFI Input Current
%
80
η
Efficiency
μA
2
3.5
I
SHDN,BATT
Shutdown Current into BATT
μA
0.1
1
I
SHDN,OUT
Shutdown Current into OUT
μA
4
6.5
I
QBATT
Quiescent Current into BATT
μA
11
18
I
QOUT
Quiescent Current into OUT
1
1.5
RATIO
Off-Time Tracking Ratio (Note 3)
mV/°C
V
V
V
-2
Start-Up Voltage Tempco
Output Voltage
Output Voltage Range
FB Set Voltage
N-Channel On-Resistance
V
0.88
V
V
0.7
V
BATT(MIN)
Minimum Operating Input Voltage
Maximum Operating Input Voltage
Start-Up Voltage (Note 2)
V-μs
17
25
35
K
On-Time Constant
V
0.8
P-Channel Catch-Diode Voltage
1.5
2.2
P-Channel On-Resistance
3.16
2.0
1.18
3.30
3.44
5.2
1.27
1.5
V
OUT
1.225
1
V
FB
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
ELECTRICAL CHARACTERISTICS
(V
BATT
= V
SHDN
= 1.3V, I
LOAD
= 0mA, FB = GND,
T
A
= 0°C to +85°C,
unless otherwise noted. Typical values are at T
A
= +25°C.)
Note 1:
The reverse battery current is measured from the Typical Operating Circuits input terminal to GND when the battery is con-
nected backward. A reverse current of 220mA will not exceed package dissipation limits but, if left for an extended time
(more than 10 minutes), may degrade performance.
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.
1.65
590
614
V
PFI
= 0V, V
OUT
= 3.3V, I
SINK
= 1mA
V
PFI
= 650mV, V
PFO
= 6V
V
0.4
1
V
OL
PFO
,
BATTLO
Low Output Voltage
PFO
,
BATTLO
Leakage Current
V
OUT
= 3.3V, hysteresis = 2% (MAX1643)
% of V
BATT
(MAX1642)
V
%
0.96
1.0
1.04
20
BATTLO
Trip Voltage
SHDN
Input Low Voltage
μA
% of V
BATT
(MAX1642)
(MAX1642)
%
nA
80
V
IH
SHDN
Input High Voltage
SHDN
Input Current
V
IL
10
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相關代理商/技術參數(shù)
參數(shù)描述
MAX1643EUA+ 功能描述:直流/直流開關轉(zhuǎn)換器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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
MAX1643EUA+T 功能描述:直流/直流開關轉(zhuǎn)換器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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
MAX1643EUA-T 功能描述:直流/直流開關轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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
MAX1644EAE 功能描述:直流/直流開關轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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
MAX1644EAE/GH9 功能描述:直流/直流開關轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率: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
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