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参数资料
| 型号： | MAX1643EUA |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | High-Efficiency, Step-Up DC-DC Converters for 1V Inputs |
| 中文描述： | 1 A SWITCHING REGULATOR, PDSO8 |
| 封装： | 1.10 MM HEIGHT, ULTRA SMALL, UMAX-8 |
| 文件页数： | 3/12页 |
| 文件大小： | 130K |
| 代理商： | MAX1643EUA |
M
High-Effic ienc y, S tep-Up
DC-DC Converters for 1V Inputs
_______________________________________________________________________________________
3
Note 2:
Start-up guaranteed by correlation to measurements of device parameters (i.e., switch on-resistance, on-times, off-times, and
output voltage trip points).
Note 3:
. This guarantees discontinuous conduction.
Note 4:
Specifications to -40°C are guaranteed by design, not production tested.
t
=
t
x V
- V
V
x RATIO
OFF
ON
BATT
OUT
BATT
Falling PFI, hysteresis = 1%
V
BATT
= 1.0V (MAX1642)
0.9V < V
BATT
< 1.5V (t
ON
= K / V
BATT
)
V
OUT
= 3.5V
V
OUT
= 3.5V (MAX1642)
V
OUT
= 3.3V
V
FB
< 0.1V
External feedback
V
OUT
= 3.3V
CONDITIONS
mV
550
662
PFI Trip Voltage
μA
3.5
I
SHDN,BATT
Shutdown Current into BATT
μA
1
I
SHDN,OUT
Shutdown Current into OUT
μA
6.5
I
QBATT
Quiescent Current into BATT
μA
18
I
QOUT
Quiescent Current into OUT
V-μs
12.4
38.2
K
On-Time Constant
2.2
P-Channel On-Resistance
V
V
2.99
1.11
3.56
1.32
1.5
V
OUT
V
FB
Output Voltage
FB Set Voltage
N-Channel On-Resistance
UNITS
MIN
MAX
SYMBOL
PARAMETER
ELECTRICAL CHARACTERISTICS
(V
BATT
= V
SHDN
= 1.3V, I
LOAD
= 0mA, FB = GND,
T
A
= -40°C to +85°C,
unless otherwise noted.) (Note 4)
Falling V
BATT
, V
OUT
= 3.3V, hysteresis = 2%
(MAX1643)
V
0.93
1.06
BATTLO
Trip Voltage
__________________________________________Typic al Operating Charac teristic s
(Circuit of Figure 4, V
BATT
= 1.2V, R1 + R2 = 1M
, T
A
= +25°C, unless otherwise noted.)
0
0.01
1
10
0.1
100
EFFICIENCY vs. OUTPUT CURRENT
(V
OUT
= 2.4V)
10
M
OUTPUT CURRENT (mA)
E
V
IN
= 1.6V
L1 = 100
μ
H
SUMIDA CD54-101
V
IN
= 1.2V
V
IN
= 0.85V
V
IN
= 1.0V
20
30
40
50
60
70
80
90
100
0
0.01
1
10
0.1
100
EFFICIENCY vs. OUTPUT CURRENT
(V
OUT
= 2.4V)
10
M
OUTPUT CURRENT (mA)
E
V
IN
= 1.6V
L1 = 150
μ
H
TDK NLC565050T-151K
V
IN
= 1.2V
V
IN
= 0.85V
V
IN
= 1.0V
20
30
40
50
60
70
80
90
100
0
0.01
1
10
0.1
100
EFFICIENCY vs. OUTPUT CURRENT
(V
OUT
= 3.3V)
10
M
OUTPUT CURRENT (mA)
E
V
IN
= 1.6V
L1 = 100
μ
H
SUMIDA CD54-101
V
IN
= 1.2V
V
IN
= 0.85V
V
IN
= 1.0V
20
30
40
50
60
70
80
90
100
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相关代理商/技术参数 |
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| MAX1643EUA+ | 功能描述:直流/直流开关转换器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1643EUA+T | 功能描述:直流/直流开关转换器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1643EUA-T | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1644EAE | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| MAX1644EAE/GH9 | 功能描述:直流/直流开关转换器 RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
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