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| 型号： | MAX1761EEE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/23页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 16-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| PWM 型： | 电流模式 |
| 输出数： | 2 |
| 频率 - 最大： | 428kHz |
| 电源电压： | 4.5 V ~ 20 V |
| 降压： | 是 |
| 升压： | 无 |
| 回扫： | 无 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-SSOP（0.154"，3.90mm 宽） |
| 包装： | 管件 |
Small, Dual, High-Efficiency
Buck Controller for Notebooks
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +22V
VL to GND ................................................................-0.3V to +6V
VL to V+ .............................................................................+0.3V
OUT_, ON2 to GND ..................................................-0.3V to +6V
ON1, DH_ to GND ........................................-0.3V to (V+ + 0.3V)
FB_, REF, DL_ to GND.................................-0.3V to (VL + 0.3V)
Continuous Power Dissipation
16-Pin QSOP (derate 8.3mW/°C above +70°C) ......….667mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature.........................................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
CS_ to GND .....................................................-2V to (V+ + 0.3V)
REF Short Circuit to GND ...........................................Continuous
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+ = 15V, C VL = 4.7μF, C REF = 0.1μF, VL not externally driven unless otherwise noted, T A = 0 ° C to +85 ° C , unless
otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
PWM CONTROLLERS
Input Voltage Range
V+
(Note 2)
4.5
20
V
DC Output Voltage Accuracy
(Note 3)
V OUT_
V+ = 4.5V to 20V,
VL = 4.75V to 5.25V,
ON2 = VL
FB_ = OUT_
FB1 = GND
FB2 = GND
0.99
2.475
1.782
1
2.5
1.8
1.01
2.525
1.818
V
Output Voltage Adjust Range
1
5.5
V
OUT_ Input Resistance
80
160
300
k ?
FB_ Input Bias Current
CS_ Input Bias Current
Soft-Start Ramp Time
V FB_ = 1V, VL = 5V
V CS_ = 0, VL = 5V
Zero to full ILIM
-0.1
-1
1700
0.1
1
μA
μA
μs
On-Time (Note 4)
t ON
V+ = 10V, V OUT1 = 2.5V,
V OUT2 = 1.8V
OUT1
OUT2
661
648
735
720
809
792
ns
Minimum Off-Time (Note 4)
t OFF
400
500
ns
BIAS AND REFERENCE
IL
FB1 = FB2 = GND, VL = 5V, V OUT1 and
V OUT2 forced above regulation point
0.60
1.20
mA
Quiescent Supply Current
I+
FB1 = FB2 = GND, V OUT1
and V OUT2 forced
above regulation point
VL undriven
VL = 5V
0.95
0.38
1.70
0.65
mA
Shutdown Supply Current
IL
I+
VL = 5V, ON1 = ON2 = GND
VL = 0, 5V
5
4
10
10
μA
μA
VL Output Voltage
Reference Voltage
Reference Load Regulation
VL
V REF
I REF
I LOAD = 0 to 25mA, V+ = 5V to 20V
V+ = 5V to 20V, no load
I REF = 0 to 50μA
4.5
1.98
4.65
2
4.75
2.02
8
V
V
mV
REF Sink Current
REF Fault Lockout Voltage
REF in regulation
Falling edge
Rising edge
10
1.6
1.94
μA
V
2
_______________________________________________________________________________________
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| MAX1761EEE+ | 功能描述:DC/DC 开关控制器 Dual Buck Controller RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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