参数资料
型号: MAX5067ETH+T
厂商: Maxim Integrated Products
文件页数: 2/32页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 44-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 1MHz
占空比: 90%
电源电压: 4.75 V ~ 28 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 44-WFQFN 裸露焊盘
包装: 带卷 (TR)
Dual-Phase, +0.6V to +3.3V Output Parallelable,
Average-Current-Mode Controllers
ABSOLUTE MAXIMUM RATINGS
IN to SGND.............................................................-0.3V to +30V
BST_ to SGND ........................................................-0.3V to +35V
DH_ to LX_ .................................-0.3V to [(V BST _ - V LX _) + 0.3V]
DL_ to PGND ..............................................-0.3V to (V CC + 0.3V)
BST_ to LX_ ..............................................................-0.3V to +6V
V CC to SGND............................................................-0.3V to +6V
V CC , V DD to PGND ...................................................-0.3V to +6V
Continuous Power Dissipation (T A = +70 ° C)
28-Pin SSOP (derate 9.5mW/ ° C above +70 ° C) ............762mW
44-Pin Thin QFN (derate 27.0mW/ ° C above+70 ° C) ...2162mW
Operating Temperature Range ...........................-40 ° C to +85 ° C
Maximum Junction Temperature .....................................+150 ° C
Storage Temperature Range .............................-60 ° C to +150 ° C
Lead Temperature (soldering, 10s) .................................+300 ° C
SGND to PGND .....................................................-0.3V to +0.3V
All Other Pins to SGND...............................-0.3V to (V CC + 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.
ELECTRICAL CHARACTERISTICS
(V CC = +5V, circuit of Figure 1, T A = -40 ° C to +85 ° C, unless otherwise noted. Typical specifications are at T A = +25 ° C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SYSTEM SPECIFICATIONS
8
28
Input Voltage Range
Quiescent Supply Current
Efficiency
V IN
I Q
η
Short IN and V CC together for +5V input
operation
EN = V CC or SGND
I LOAD = 52A (26A per phase)
4.75
4
90
5.50
10
V
mA
%
OUTPUT VOLTAGE
No load
0.5952
0.6
0.6048
SENSE+ to SENSE- Accuracy
(Note 4)
MAX5065 No load, V CC = +4.75V to +5.5V
or V IN = +8V to +28V
No load
MAX5067 No load, V CC = +4.75V to +5.5V
or V IN = +8V to +28V
0.594
0.7936
0.792
0.6
0.8
0.8
0.6064
0.8064
0.808
V
STARTUP/INTERNAL REGULATOR
V CC Undervoltage Lockout
UVLO
V CC rising
4.0
4.15
4.5
V
V CC Undervoltage Lockout
Hysteresis
200
mV
V CC Output Accuracy
V IN = +8V to +28V, I SOURCE = 0 to 80mA
4.85
5.1
5.30
V
MOSFET DRIVERS
Output Driver Impedance
Output Driver Source/Sink
Current
Nonoverlap Time
R ON
I DH _, I DL _
t NO
Low or high output
C DH _ /DL _ = 5nF
1
4
60
3
?
A
ns
OSCILLATOR AND PLL
Switching Frequency
PLL Lock Range
f SW
f PLL
CLKIN = SGND
CLKIN = V CC
238
475
125
250
500
262
525
600
kHz
kHz
PLL Locking Time
t PLL
200
μs
2
_______________________________________________________________________________________
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