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参数资料
型号： MAX1623EAP
厂商： MAXIM INTEGRATED PRODUCTS INC
元件分类： 稳压器
英文描述： 3A, Low-Voltage, Step-Down Regulator with Synchronous Rectification and Internal Switches
中文描述： 5.5 A SWITCHING REGULATOR, 350 kHz SWITCHING FREQ-MAX, PDSO20
封装： SSOP-20
文件页数： 2/12页
文件大小： 164K
代理商： MAX1623EAP
M
3A, Low-Voltage, Step-Down Regulator with
Synchronous Rectification and Internal Switches
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
IN to PGND .....................................................................0V to 6V
V
CC
to GND ................................................................-0.3V to 6V
PGND to GND.....................................................................±0.5V
IN to V
CC
.............................................................................±0.5V
LX to PGND.................................................................-0.5V to 6V
SHDN
to GND.............................................................-0.3V to 6V
REF, FBSEL, COMP, FB, TOFF to GND .....-0.3V to (V
CC
+ 0.3V)
ELECTRICAL CHARACTERISTICS
(V
IN
= V
CC
= +5V, FBSEL unconnected, R
TOFF
= 110k
,
T
A
= 0°C to +85°C
, unless otherwise noted. Typical values are at T
A
=
+25°C.)
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.
REF Short to GND ......................................................Continuous
Continuous Power Dissipation (T
A
= +70°C) (with part mounted
on 1 sq. inch of one ounce copper)
20-Pin SSOP (derate 22mW/°C above +70°C) ................1.3W
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
SHDN
= GND or V
CC
FBSEL = REF
FBSEL = GND
V
IN
= 4.5V to 5.5V,
I
LOAD
= 0 to 3A
(Note 1)
FBSEL = GND, adjustable output mode, V
FB
= 1.2V
V
CC
falling, 100mV hysteresis
I
LOAD
≥
1.5A (Note 1)
V
IN
= 4.5V
SHDN
= GND
V
IN
= 5.5V, V
LX
= 5.5V or 0
V
IN
= 4.5V
FBSEL = GND or REF (Note 1)
I
REF
= 0
I
REF
= -1μA to 10μA
Does not include switching losses
CONDITIONS
V
V
0.8
SHDN
Input Low Voltage
SHDN
Input High Voltage
μA
-1
0.03
1
SHDN
Input Current
2
%
1
AC Output Load Regulation
μs
0.85
1.00
1.15
Off-Time Default Period
μs
0.5
4
Off-Time Adjustment Range
kHz
500
Error-Amplifier Gain Bandwidth
nA
-25
25
FB Input Bias Current
V
4.1
4.2
4.3
Undervoltage Lockout Threshold
°C
145
Thermal Shutdown Threshold
μA
μA
0.5
10
±20
Shutdown Supply Current
LX Leakage Current
μA
400
525
No-Load Supply Current
A
1
1.25
1.5
Idle Mode Threshold (Note 2)
2.49
1.089
V
REF
1.089
2.525
1.100
2.550
1.110
3.80
1.110
1
V
3.296
3.330
3.366
V
4.5
5.5
Input Voltage Range
Output Voltage
kHz
350
Maximum Switching Frequency
m
60
100
NMOS Switch On-Resistance
m
55
100
PMOS Switch On-Resistance
A
3.65
4.65
Current-Limit Threshold
V
V
Output Adjustment Range
Reference Output Voltage
Reference Load Regulation
1.100
mV
UNITS
MIN
TYP
MAX
PARAMETER
FBSEL = unconnected
FBSEL = V
CC
FBSEL = GND or REF
2
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相关代理商/技术参数
参数描述
MAX1623EA-P 制造商:Maxim Integrated Products 功能描述:
MAX1623EAP+ 功能描述:直流/直流开关调节器 3A Step-Down w/Synch Rectification RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
MAX1623EAP+T 功能描述:直流/直流开关调节器 3A Step-Down w/Synch Rectification RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
MAX1623EAP-T 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
MAX1623EVKIT 功能描述:直流/直流开关调节器 Evaluation Kit for the MAX1623 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5
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