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参数资料
| 型号： | MAX1639ESE |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | High-Speed Step-Down Controller with Synchronous Rectification for CPU Power |
| 中文描述： | SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | SOIC-16 |
| 文件页数： | 3/13页 |
| 文件大小： | 108K |
| 代理商： | MAX1639ESE |
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= V
CC
= +5V, PGND = AGND = 0V, FREQ = REF,
T
A
= 0°C to +85°C
, unless otherwise noted.)
M
_______________________________________________________________________________________
3
High-S peed S tep-Down Controller with
S ync hronous Rec tific ation for CPU Power
15
38
70
mV
FB = 0V (foldback)
To full current limit
Current-Limit Trip Voltage
DL On-Resistance
DH, DL Source/Sink Current
DH, DL Dead Time
A
ns
50
μA
BST = 12V, LX = 7V, REF = GND
BST Leakage Current
1536
1 / f
OSC
Soft-Start Time
85
100
115
FB = 1.1V
FB Input Current
CC1 Output Resistance
CC2 Clamp Voltage
PARAMETER
MIN
TYP
MAX
4
50
UNITS
μA
μA
FREQ Input Current
CSH, CSL Input Current
±0.1
μA
k
2.4
4
3.0
V
CC
V
CC2 Source/Sink Current
DH On-Resistance
100
0.7
0.7
2
30
μA
2
2
Maximum
30mV overdrive
BST - LX = 4.5V
V
DD
= 4.5V
DH = DL = 2.5V
0
CONDITIONS
Minimum
ELECTRICAL CHARACTERISTICS
(V
DD
= V
CC
= +5V, PGND = AGND = 0V, FREQ = REF,
T
A
= -40°C to +85°C
, unless otherwise noted.) (Note 1)
Note 1:
Specifications from 0°C to -40°C are guaranteed by design, not production tested.
FREQ = REF
FREQ = AGND
FREQ = V
CC
BST - LX = 4.5V
V
DD
= 4.5V
FB = 1.1V
FREQ = V
CC
Falling FB, 1% hysteresis with respect to V
REF
Rising FB, 1% hysteresis with respect to V
REF
mV
2
2
%
84
DL On-Resistance
Current-Limit Trip Voltage
V
CC
rising edge, 1% hysteresis
V
CC
= V
DD
CONDITIONS
510
240
690
360
Maximum Duty Cycle
DH On-Resistance
800
1200
Switching Frequency
70
130
6
10
kHz
%
-8
-4
PWROK Trip Level
V
3.9
4.3
3
Input Undervoltage Range
V
4.5
5.5
Input Voltage Range
UNITS
MIN
TYP
MAX
PARAMETER
CC2 Transconductance
10
1
mmho
CSH = CSL = 1.1V
V
CC
= V
DD
=
5.5V
mA
12
V
DD
Supply Current
Includes line and load regulation errors
No load
V
1.072
1.128
FB Voltage
V
3.448
3.553
Reference Voltage
V
CC
= V
DD
= 5.5V, FB forced 60mV above
regulation point, operating or shutdown mode
mA
0.2
V
DD
Supply Current
Operating mode
Shutdown mode
FB overdrive = 60mV
VREF = 0V
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相关代理商/技术参数 |
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| MAX1639ESE+ | 功能描述:DC/DC 开关控制器 High Speed Step Down 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 |
| MAX1639ESE+T | 功能描述:DC/DC 开关控制器 High Speed Step Down 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 |
| MAX1639ESE-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 |
| MAX1639EVKIT | 功能描述:DC/DC 开关控制器 Evaluation Kit the MAX1639 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 |
| MAX163BCNG | 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
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