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參數(shù)資料
| 型號： | MAX1966-MAX1967 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Cost Voltage-Mode PWM Step-Down Controllers |
| 中文描述： | 低成本電壓模式PWM降壓型控制器 |
| 文件頁數(shù)： | 2/15頁 |
| 文件大小： | 404K |
| 代理商： | MAX1966-MAX1967 |
M
Low-Cost Voltage-Mode PWM
Step-Down Controllers
2
_______________________________________________________________________________________
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
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.)
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.
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
PARAMETER
SYMBOL
CONDITIONS
MIN
4.9
TYP
MAX
28
UNITS
V
MAX1967 VIN Operating Range
MAX1967 Operating Range with
VIN = VL
2.7
5.5
V
MAX1966 VIN Operating Range
2.7
5.5
V
MAX1967 VL Undervoltage
Lockout (UVLO) Trip Level
Rising and falling edge, hysteresis = 2%
2.35
2.53
2.66
V
MAX1966 VIN UVLO
Trip Level
Rising and falling edge, hysteresis = 2%
2.35
2.53
2.66
V
Operating Supply Current
FB = 0.88V, no switching
0.7
3
mA
V L Outp ut V ol ag e ( M AX 1967 Onl y)
5.5V < VIN < 28V, 1mA < I
VL
< 25mA,
FB = 0.88V
4.67
5
5.3
V
Thermal Shutdown (Note 1)
OSCILLATOR
Rising temperature, typical hysteresis = 10
°
C
160
°
C
0
°
C to +85
°
C
-40
°
C to +85
°
C
82
79
102
102
124
127
10
Frequency
f
OSC
kHz
Minimum Duty Cycle
Maximum Duty Cycle
SOFT-START
%
%
90
95
Digital Ramp Period
Internal 6-bit DAC for converter to ramp from
0 to full output voltage
1024 /
f
OSC
s
Soft-Start Levels
V
OUT
/
64
V
ERROR AMPLIFIER
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
4000
0.815
0.815
0.815
0.815
FB Regulation Voltage
(MAX1967)
V
FB Regulation Voltage
(MAX1966)
V
FB to COMP/EN Gain
V/V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1967EUB | 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX1967EUB+ | 功能描述:電壓模式 PWM 控制器 Voltage-Mode PWM Step-Down RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX1967EUB+T | 功能描述:電壓模式 PWM 控制器 Voltage-Mode PWM Step-Down RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX1967EUB-T | 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel |
| MAX19681EXW+D | 制造商:Maxim Integrated Products 功能描述:12-BIT, 1.5GSPS HIGH-DYNAMIC PERFORMANCE DAC - Rail/Tube |
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