參數(shù)資料
型號(hào)： MAX1685
廠商： Maxim Integrated Products, Inc.
英文描述： Low-Noise, 14V Input, 1A, PWM Step-Down Converters
中文描述： 低噪聲、14V輸入、1A、PWM降壓型轉(zhuǎn)換器
文件頁數(shù)： 3/16頁
文件大?。?/td> 234K
代理商： MAX1685
M
Low-Noise, 14V Input, 1A, PWM
S tep-Down Converters
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
SHDN
= +6V,
STBY
= SYNC/PWM = CVL, V
BOOT
= V
OUT
, FB = AGND, circuit of Figure 1,
T
A
= 0°C to +85°C
, unless other-
wise noted. Typical values are at T
A
= +25°C.)
STBY
= low, V
IN
= 2.7V
CONDITIONS
μA
230
430
Quiescent Supply Current
in Dropout
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
SHDN
= low
V
IN
= 14V, V
LX
= 0 or 14V,
SHDN
= low
μA
μA
2
6
Shutdown Supply Current
LX Leakage Current
MAX1684
MAX1685
260
520
300
600
340
680
MAX1684
MAX1685
180
360
350
700
SYNC Capture Range
kHz
f
OSC
Oscillator Frequency
20
I
LX
%
100
Maximum Duty Cycle
(Note 3)
%
20
Constant-Frequency Minimum
Duty Cycle
10
-1μA < I
REF
< 50μA
2.7V < V
BOOT
< 5.5V
mV
mV
4
15
5
Reference Load Regulation
Reference Supply Regulation
V
IN
= 3V to 14V, BOOT = AGND,
I
CVL
= 0 to 5mA
V
2.7
3.0
3.15
I
REF
= 0
CVL Regulator Output Voltage
0.2
V
1.238
1.251
1.264
V
REF
Reference Output Voltage
kHz
MAX1684
MAX1685
BOOT = AGND, I
CVL
= 5mA
mV
120
CVL Dropout Voltage
Typical hysteresis is 10°C (Note 4)
V
ILIM/SS
= 1.4V
°C
μA
160
4
Thermal Shutdown Threshold
ILIM/SS Source Current
BOOT falling edge,
typical hysteresis is 0.1V
V
2.4
2.5
2.6
BOOT Switchover Threshold
I
CVH
= -1mA
V
-5.0
-4.6
-4.1
CVH with Respect to V
IN
SHDN
,
STBY
, SYNC/PWM
V
V
2
V
IH
V
IL
Logic Input High Voltage
Logic Input Low Voltage
3.3
4.65
High or low period
ns
500
SYNC/PWM Pulse Width
SHDN
,
STBY
, SYNC/PWM
μA
-1
1
Logic Input Current
0.7
BOOT = AGND, CVL falling edge,
typical hysteresis is 40mV
V
2.4
2.5
2.6
CVL Undervoltage Lockout
Threshold
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1685EEE 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 14V 1A PWM Step-Down Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(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
MAX1685EEE+ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 14V 1A PWM Step-Down Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(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
MAX1685EEE+T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 14V 1A PWM Step-Down Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(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
MAX1685EEE-T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 14V 1A PWM Step-Down Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(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
MAX1685EVKIT 功能描述:電源管理IC開發(fā)工具 Evaluation Kit for the MAX1684 MAX1685 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
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