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参数资料
| 型号： | MAX1854EEG |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | High-Speed, Adjustable, Synchronous Step-Down Controllers with Integrated Voltage Positioning |
| 中文描述： | SWITCHING CONTROLLER, 550 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封装： | 0.150 INCH, 0.025 INCH PITCH, QSOP-24 |
| 文件页数： | 3/33页 |
| 文件大小： | 840K |
| 代理商： | MAX1854EEG |
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M
High-Speed, Adjustable, Synchronous Step-Down
Controllers with Integrated Voltage Positioning
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V+ = +15V, V
CC
= V
DD
= 5V,
SKIP
= V
CC
, VPS = PGND,
T
A
= 0
°
C to +85
°
C
, unless otherwise noted. Typical
values are at T
A
= +25
°
C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
BIAS AND REFERENCE
Quiescent Supply Current (V
CC
)
I
CC
Measured at V
CC
, FB forced above the
regulation point
700
950
μ
A
Quiescent Supply Current (V
DD
)
I
DD
Measured at V
DD
, FB forced above the
regulation point
<1
5
μ
A
Quiescent Supply Current (V+)
Shutdown Supply Current (V
CC
)
Shutdown Supply Current (V
DD
)
Shutdown Supply Current (V+)
Reference Voltage
Reference Load Regulation
REF Sink Current
REF Fault Lockout Voltage
FAULT PROTECTION
I+
25
<1
<1
<1
2
40
5
5
5
2.02
0.01
μ
A
μ
A
μ
A
μ
A
V
V
μ
A
V
SHDN
= GND
SHDN
= GND
SHDN
= GND, V
CC
= V
DD
= 0 or 5V
V
CC
= 4.5V to 5.5V, no external REF load
I
REF
= 0 to 50
μ
A
REF in regulation
Falling edge
V
REF
1.98
I
REF
10
1.6
MAX1716
MAX1855
1.8
1.97
1.9
2.0
2.0
2.03
Output Overvoltage Fault
Threshold (Note 5)
Measured at FB
V
Output Overvoltage Fault
Propagation Delay (Note 5)
FB forced to 2% above trip threshold
(MAX1716/MAX1855 only)
1.5
μ
s
Output Undervoltage Fault
Threshold (Foldback)
35
40
45
%
Output Undervoltage Fault
Propagation Delay
FB forced to 2% below trip threshold
10
μ
s
Output Undervoltage Fault
Blanking Time (Foldback)
From
SHDN
signal going high
10
30
ms
Current-Limit Threshold
(Positive, Default)
V
ITH
V
PGND
- V
CS
, ILIM = V
CC
110
120
130
mV
V
ILIM
= 0.5V
V
ILIM
= 2V (REF)
40
170
50
200
60
230
Current-Limit Threshold
(Positive, Adjustable)
V
ITH
V
PGND
- V
CS
mV
Negative Current-Limit
Threshold
V
PGND
- V
CS
-1.2
×
V
ITH
mV
Zero-Crossing Current-Limit
Threshold
V
PGND
- V
CS
3
mV
Thermal Shutdown Threshold
Hysteresis = 10
°
C
150
°
C
V
CC
Undervoltage Lockout
Threshold
Rising edge, hysteresis = 20mV, switching
disabled below this level
4.0
4.45
V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1854EEG/GG8 | 功能描述:DC/DC 开关控制器 High-Speed Adjustable Synchronous Step-Down Controllers with Integrated Voltage Positioning 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 |
| MAX1854EEG+ | 制造商:Maxim Integrated Products 功能描述:HIGH-SPEED,DIGITALLY ADJUSTABLE SYNCHRONOUS STEPDOWN CONTROL - Rail/Tube |
| MAX1854EEG+T | 制造商: 功能描述: 制造商:undefined 功能描述: |
| MAX1854EEGT | 制造商: 功能描述: |
| MAX1854EEG-T | 功能描述:DC/DC 开关控制器 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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