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参数资料
型号： MAX1961
厂商： Maxim Integrated Products, Inc.
英文描述： 2.35V to 5.5V, 0.5% Accurate, 1MHz PWM Step-Down Controllers with Voltage Margining
中文描述： 2.35V至5.5V、0.5%精度、1MHz PWM降压型控制器，带有电压裕量控制
文件页数： 2/29页
文件大小： 455K
代理商： MAX1961
M
2.35V to 5.5V, 0.5% Accurate, 1MHz PWM
Step-Down Controllers with Voltage Margining
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V
CC
, CTL_, CS, FSET/SYNC, SEL, EN,
OUT to GND..........................................................-0.3V to +6V
ILIM, COMP, REF, FB, CLKOUT,
C- to GND..............................................-0.3V to V
AVDD
+ 0.3V
C+ to GND.............-0.3V to higher of V
VCC
+ 1V or V
VDD
+ 0.3V
V
DD
, AV
DD
to GND..............-0.3V to higher of V
VCC
- 0.3V or 6V
DL to PGND ................................................-0.3V to V
VDD
+ 0.3V
BST to GND............................................................-0.3V to +12V
DH to LX...................................................................-0.3V to +6V
LX to BST..................................................................-6V to +0.3V
PGND to GND, or V
DD
to AV
DD
............................-0.3V to +0.3V
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.
Continuous Power Dissipation (T
A
= +70
°
C)
20-Pin QSOP (derate up to +70
°
C)..............................727mW
20-Pin QSOP (derate above +70
°
C)........................9.1mW/
°
C
Operating Temperature Range (Extended).........-40
°
C to +85
°
C
Junction Temperature......................................................+150
°
C
Storage Temperature Range.............................-65
°
C to +150
°
C
Lead Temperature (soldering, 10s).................................+300
°
C
ELECTRICAL CHARACTERISTICS
(V
VCC
= 3.3V, Circuits of Figures 9
–
12,
T
A
= 0
°
C to +85
°
C
. Typical values are at T
A
= +25
°
C, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN
2.35
1.95
3.9
0.8
0.796
1.492
1.791
2.487
3.272
+3.8
-3.8
TYP
MAX
5.5
2.3
4.45
UNITS
V
V
V
V
V
CC
Input Voltage Range
V
CC
Input Voltage UVLO
V
DD
Input Voltage UVLO
Output Voltage
Rising or falling, hysteresis = 33mV (typ)
Rising or falling, hysteresis = 44mV (typ)
MAX1960/MAX1962 (measured at FB)
0.800
1.500
1.800
2.500
3.300
+4
-4
0.08
0.1
0.804
1.508
1.809
2.514
3.336
+4.2
-4.2
SEL = GND
SEL = REF
SEL not connected
SEL = V
DD
DC Output Accuracy
MAX1961/
MAX1962 (FB = V
DD
),
measured at output
V
Positive Voltage-Margining Shift
Negative Voltage-Margining Shift
Load Regulation Error
Line Regulation Error
FB Input Bias Current
Feedback Transconductance
COMP Discharge Resistance
DC-DC Soft-Start Time
MAX1960/MAX1961
MAX1960/MAX1961
0V to full load
V
VCC
= 2.7V to 5.5V
%
%
%
%
μ
A
mS
-0.2
1
+0.2
3
100
2
10
1280
500
1000
In shutdown
cycles
FSET/SYNC = GND
FSET/SYNC = V
CC
450
880
450
80
90
550
1120
1200
Switching Frequency
kHz
SYNC Frequency Range
Maximum Duty Cycle
Maximum Duty Cycle
Quiescent Supply Current
Shutdown Supply Current
kHz
%
%
mA
μ
A
f = 1MHz
f = 500kHz
83
92
11
15
15
相关PDF资料
PDF描述
MAX1962 2.35V to 5.5V, 0.5% Accurate, 1MHz PWM Step-Down Controllers with Voltage Margining
MAX1962EEP 2.35V to 5.5V, 0.5% Accurate, 1MHz PWM Step-Down Controllers with Voltage Margining
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相关代理商/技术参数
参数描述
MAX1961EEP 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
MAX1961EEP+ 功能描述:DC/DC 开关控制器 1MHz PWM 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
MAX1961EEP+T 功能描述:DC/DC 开关控制器 1MHz PWM 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
MAX1961EEP-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
MAX1962EEP 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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