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| 型号： | MAX1967EUB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/15页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM VM 10-UMAX |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| PWM 型： | 电压模式 |
| 输出数： | 1 |
| 频率 - 最大： | 127kHz |
| 占空比： | 95% |
| 电源电压： | 2.7 V ~ 28 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： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
Low-Cost Voltage-Mode PWM
Step-Down Controllers
ABSOLUTE MAXIMUM RATINGS
(All Voltages Referenced to GND, Unless Otherwise Noted)
VIN to GND (MAX1966)............................................-0.3V to +6V
VIN to GND (MAX1967)..........................................-0.3V to +30V
VCC to GND (MAX1967)..........-0.3V, lower of 6V or (V IN + 0.3V)
FB to GND ................................................................-0.3V to +6V
DL, COMP/EN to GND (MAX1966) ................-0.3V to V IN + 0.3V
VL, DL, COMP/EN to GND (MAX1967).........-0.3V to V CC + 0.3V
BST to LX..................................................................-0.3V to +6V
DH to LX........................................................-0.3V to BST + 0.3V
VL Short to GND (MAX1967) ....................................................5s
RMS Input Current (any pin).............................................±50mA
Continuous Power Dissipation (T A = +70°C)
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
10-Pin μMAX (derate 5.6mW/°C above +70°C) ...........444mW
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
(VIN = VL = VCC = 5V (MAX1967), VIN = 5V (MAX1966), T A = -40°C to +85°C (Note 1), unless otherwise noted. Typical values are at
T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX1967 VIN Operating Range
MAX1967 Operating Range with
VIN = VL
MAX1966 VIN Operating Range
4.9
2.7
2.7
28
5.5
5.5
V
V
V
MAX1967 VL Undervoltage
Lockout (UVLO) Trip Level
MAX1966 VIN UVLO
Trip Level
Operating Supply Current
VL Output Voltage (MAX1967 Only)
Thermal Shutdown (Note 1)
Rising and falling edge, hysteresis = 2%
Rising and falling edge, hysteresis = 2%
FB = 0.88V, no switching
5.5V < VIN < 28V, 1mA < I VL < 25mA,
FB = 0.88V
Rising temperature, typical hysteresis = 10 ° C
2.35
2.35
4.67
2.53
2.53
0.7
5
160
2.66
2.66
3
5.3
V
V
mA
V
° C
OSCILLATOR
Frequency
f OSC
0 ° C to +85 ° C
-40 ° C to +85 ° C
82
79
102
102
124
127
kHz
Minimum Duty Cycle
10
%
Maximum Duty Cycle
90
95
%
SOFT-START
Digital Ramp Period
Soft-Start Levels
Internal 6-bit DAC for converter to ramp from
0 to full output voltage
1024 /
f OSC
V OUT /
64
s
V
ERROR AMPLIFIER
FB Regulation Voltage
(MAX1967)
FB Regulation Voltage
(MAX1966)
2.7V < VCC < 5.5V, 0 ° C to +85 ° C
2.7V < VCC < 5.5V, -40 ° C to +85 ° C
2.7V < VIN < 5.5V, 0 ° C to +85 ° C
2.7V < VIN < 5.5V, -40 ° C to +85 ° C
0.787
0.782
0.787
0.782
0.800
0.800
0.800
0.800
0.815
0.815
0.815
0.815
V
V
FB to COMP/EN Gain
4000
V/V
2
_______________________________________________________________________________________
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