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參數(shù)資料
| 型號(hào)： | MAX1896 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類(lèi)： | DC/DC變換器 |
| 英文描述： | 1.4MHz SOT23 Current-Mode Step-Up DC-DC Converter |
| 中文描述： | 1.4MHz、SOT23封裝、電流模式升壓型DC-DC轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 2/10頁(yè) |
| 文件大?。?/td> | 755K |
| 代理商： | MAX1896 |
M
1.4MHz SOT23 Current-Mode
Step-Up DC-DC Converter
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
LX to GND ..............................................................-0.3V to +14V
IN,
SHDN
, FB to GND...............................................-0.3V to +6V
SS to GND ...................................................-0.3V to (V
IN
+ 0.3V)
RMS LX Pin Current ..............................................................0.6A
Continuous Power Dissipation (T
A
= +70°C) (Note 1)
6-Pin SOT23 (derate 9.1mW/°C above +70°C)...........727mW
ELECTRICAL CHARACTERISTICS
(V
IN
= V
SHDN
= 3V, FB = GND, SS = open,
T
A
= 0°C to +85°C
, unless otherwise noted.)
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.
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
V
IN
V
OUT
UVLO
CONDITIONS
MIN
2.6
TYP
MAX
5.5
13
2.55
0.4
5
0.5
10
UNITS
V
V
V
Input Supply Range
Output Voltage Adjust Range
V
IN
Undervoltage Lockout
Circuit of Figure 1
V
IN
rising, 50mV hysteresis
V
FB
= 1.3V, not switching
V
FB
= 1.0V, switching
V
SHDN
= 0, T
A
= +25
°
C
V
SHDN
= 0
2.25
2.4
0.2
1
0.01
0.01
Quiescent Current
I
IN
mA
Shutdown Supply Current
μA
ERROR AMPLIFIER
Feedback Regulation Set Point
FB Input Bias Current
Line Regulation
OSCILLATOR
Frequency
Maximum Duty Cycle
POWER SWITCH
Current Limit (Note 2)
On-Resistance
V
FB
I
FB
1.2
1.24
21
0.05
1.25
80
0.20
V
nA
%/V
V
FB
= 1.24V
2.6V < V
IN
< 5.5V
f
OSC
DC
1000
82
1400
86
1800
kHz
%
I
LIM
R
ON
V
FB
= 1V, duty cycle = 50%
0.55
0.8
0.7
0.1
A
1
1
10
V
LX
= 12V, T
A
= +25
°
C
V
LX
= 12V
Leakage Current
I
LXOFF
μA
SOFT-START
Reset Switch Resistance
Charge Current
CONTROL INPUT
Input Low Voltage
Input High Voltage
100
7.0
μA
V
SS
= 1.2V
1.5
4
V
IL
V
IH
V
SHDN,
V
IN
= 2.6V to 5.5V
V
SHDN,
V
IN
= 2.6V to 5.5V
V
SHDN
= 3V
V
SHDN
= 0
0.3
V
V
1.0
25
0.01
50
0.1
SHDN
Input Current
I
SHDN
μA
Note 1:
Thermal properties are specified with product mounted on PC board with one square-inch of copper area and still air.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1896EUT | 制造商:Maxim Integrated Products 功能描述:1.4MHZ SOT23 CURRENT-MODE STEP-UP D - Cut Tape Product |
| MAX1896EUT#G16 | 制造商:Maxim Integrated Products 功能描述:1.4MHZ SOT23 CURRENT-MODE STEP-UP DC-DC CONVERTER - Rail/Tube |
| MAX1896EUT#TG16 | 功能描述:電流型 PWM 控制器 1.4MHz Current-Mode Step-Up RoHS:否 制造商:Texas Instruments 開(kāi)關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| MAX1896EUT+ | 制造商:Maxim Integrated Products 功能描述:1.4MHZ SOT23 CURRENT-MODE STEP-UP DC-DC CONVERTER - Rail/Tube |
| MAX1896EUT+T | 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 1.4MHz Current-Mode Step-Up RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
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