参数资料
型号: MAX1534ETE+
厂商: Maxim Integrated Products
文件页数: 2/16页
文件大小: 0K
描述: IC PWR SUPPLY CONTROLLER 16TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 75
应用: 电源控制器
输入电压: 4.5 V ~ 26 V
电流 - 电源: 15µA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-WQFN 裸露焊盘
供应商设备封装: 16-TQFN-EP(4x4)
包装: 管件
High-Efficiency, Triple-Output, Keep-Alive
Power Supply for Notebook Computers
ABSOLUTE MAXIMUM RATINGS
IN, ILIM, PRESET , SHDN to GND...........................-0.3V to +25V
FB1, FB2, FB3, LDOIN, BP to GND..........................-0.3V to +6V
OUT1, OUT2, POK to GND ...................-0.3V to (V LDOIN + 0.3V)
LX to GND.......................................................-2V to (V IN + 0.3V)
OUT1, OUT2 Short Circuit to GND.............................Continuous
Peak IN Current........................................................................2A
Maximum IN DC Current...................................................500mA
Continuous Power Dissipation (T A = +70°C)
16-Pin Thin QFN (derate 16.9mW/°C
above +70°C)............................................................1349mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°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.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V IN = 12V, ILIM = GND, PRESET = GND, T A = 0°C to +85°C , unless otherwise noted. Typical values are at T A =
+25°C.)
PARAMETER
Input Voltage Range
Input Supply Current
Input Supply Current in
Dropout
Shutdown Supply Current
Input UVLO Threshold
SYMBOL
V IN
I IN
I IN(DROP)
V UVLO
CONDITIONS
No load, FB3 = 5.2V, LDOIN = GND
No load, FB3 = V IN = 4.5V, LDOIN = GND
SHDN = GND
V IN rising
V IN falling
MIN
4.5
3.6
3.5
TYP
15
60
3.5
4.0
3.9
MAX
24
30
110
7
4.4
4.3
UNITS
V
μA
μA
μA
V
BUCK REGULATOR
FB3 Voltage Accuracy (Preset
Mode) (Note 1)
PRESET = GND
T A = +25 ° C to +85 ° C
T A = 0 ° C to +85 ° C
4.92
4.90
5.00
5.00
5.08
5.10
V
FB3 Set Voltage (Adjustable
Mode) (Note 1)
V FB3
PRESET = IN
T A = +25 ° C to +85 ° C
T A = 0 ° C to +85 ° C
0.985
0.98
1.00
1.00
1.015
1.02
V
FB3 Bias Current
LX Switch Minimum Off-Time
LX Switch Minimum On-Time
LX Switch Maximum On-Time
LX Switch On-Resistance
I FB3
t OFF(MIN)
t ON(MIN)
t ON(MAX)
R LX
V FB3 = 5.5V
V IN = 6V
V IN = 4.5V
0.22
9
3.5
0.42
0.50
10
0.5
0.6
6.25
0.62
11
1.0
1.2
μA
μs
μs
μs
?
LX Current Limit
I LX(PEAK)
ILIM = IN
ILIM = GND
800
425
1000
500
1200
575
mA
LX Zero-Crossing Threshold
LX Zero-Crossing Timeout
LX does not rise above threshold
-75
30
+75
mV
μs
LX Switch Leakage Current
V IN = 24V, not
switching
T A = +25 ° C
T A = 0 ° C to +85 ° C
1
10
μA
Dropout Voltage
Line Regulation
Load Regulation
V OUT3(DROPOUT) I LX(DC) = 500mA
V IN = 8V to 24V, I LX(DC) = 200mA
I LX(DC) = 80mA to 400mA
250
0.1
0.9
mV
%/V
%
LINEAR REGULATORS
LDOIN Input Voltage
V LDOIN
2.5
5.5
V
LDOIN Undervoltage Lockout
V UVLO(LDO)
V LDOIN rising, hysteresis = 40mV typ
2.15
2.4
V
2
_______________________________________________________________________________________
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