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参数资料
型号： MAX1584-MAX1585
厂商： Maxim Integrated Products, Inc.
英文描述： 5-Channel Slim DSC Power Supplies
中文描述： 5通道电源超薄数码相机
文件页数： 7/29页
文件大小： 632K
代理商： MAX1584-MAX1585
M
5-Channel Slim DSC Power Supplies
_______________________________________________________________________________________
7
STEP-UP EFFICIENCY
vs. LOAD CURRENT
M
LOAD CURRENT (mA)
E
100
10
10
20
30
40
50
60
70
80
90
100
0
1
1000
V
OUT
= 5V
V
IN
= 4.5V
V
IN
= 4.2V
V
IN
= 3.8V
V
IN
= 3.0V
STEP-DOWN EFFICIENCY
vs. LOAD CURRENT
M
LOAD CURRENT (mA)
E
100
10
10
20
30
40
50
60
70
80
90
100
0
1
1000
V
IN
= 3.0V
V
IN
= 3.8V
V
IN
= 4.2V
V
IN
= 4.5V
PVSD CONNECTED TO BATTERY
V
OUT
= 1.5V
DOES NOT INCLUDE CURRENT USED
BY THE STEP-UP TO POWER THE IC
COMBINED BOOST-BUCK
EFFICIENCY vs. LOAD CURRENT
M
LOAD CURRENT (mA)
E
100
10
10
20
30
40
50
60
70
80
90
100
1
1000
V
IN
= 4.5V
V
IN
= 4.2V
V
IN
= 3.8V
V
IN
= 3.0V
V
OUT3
= 3.3V
V
OUTSU
= 5.0V
EFFICIENCY vs. INPUT VOLTAGE
M
INPUT VOLTAGE (V)
E
4.0
3.5
75
80
85
90
95
100
70
3.0
4.5
SU = 5V, 300mA
SD = 1.5V, 250mA
SU + AUX3 = 3.3V, 300mA
AUX1 = 15V, 40mA
AUX2 = -7.5V, 40mA
AUX1 EFFICIENCY vs. LOAD CURRENT
M
LOAD CURRENT (mA)
E
100
10
40
50
60
70
80
90
100
30
1
1000
V
IN
= 4.5V
V
IN
= 4.2V
V
IN
= 3.8V
V
IN
= 3.0V
V
OUT1
= 15V
MAX1585 AUX2 EFFICIENCY
vs. LOAD CURRENT
M
LOAD CURRENT (mA)
E
100
10
40
50
60
70
80
90
30
1
1000
V
IN
= 3.0V
V
IN
= 3.8V
V
IN
= 4.2V
V
IN
= 4.5V
V
OUT2
= -7.5V
Typical Operating Characteristics
(Circuit of Figure 1, T
A
= +25
°
C, unless otherwise noted.)
Note 5:
The step-up current limit in startup refers to the LXSU switch current limit, not an output current limit.
Note 6:
The idle mode current threshold is the transition point between fixed-frequency PWM operation and idle mode operation
(where switching rate varies with load). The specification is given in terms of inductor current. In terms of output current, the
idle mode transition varies with input-output voltage ratio and inductor value. For the step-up, the transition output current is
approximately 1/3 the inductor current when stepping from 2V to 3.3V. For the step-down, the transition current in terms of
output current is approximately 3/4 the inductor current when stepping down from 3.3V to 1.8V.
Note 7:
Operation in dropout (100% duty cycle) can only be maintained for 100,000 OSC cycles before the output is considered
faulted, triggering global shutdown.
Note 8:
Specifications to -40
°
C are guaranteed by design, not production tested.
ELECTRICAL CHARACTERISTICS (continued)
(V
PVSU
= V
PV
= V
PVSD
= V
INDL2
= 3.6V,
T
A
= -40
°
C to +85
°
C
, unless otherwise noted.) (Note 8)
相关PDF资料
PDF描述
MAX1584ETJ 5-Channel Slim DSC Power Supplies
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MAX1586AETM High-Efficiency, Low-IQ PMICs with Dynamic Core for PDAs and Smart Phones
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相关代理商/技术参数
参数描述
MAX1585ETJ 功能描述:直流/直流开关转换器 5Ch Slim DSC Power Supply 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
MAX1585ETJ+ 功能描述:直流/直流开关转换器 5Ch Slim DSC Power Supply 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
MAX1585ETJ+T 功能描述:直流/直流开关转换器 5Ch Slim DSC Power Supply 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
MAX1585ETJ-T 功能描述:直流/直流开关转换器 5Ch Slim DSC Power Supply 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
MAX1585EVKIT 功能描述:直流/直流开关转换器 Evaluation Kit for the MAX1585 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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