参数资料
型号: MAX5080EVKIT
厂商: Maxim Integrated Products
文件页数: 2/19页
文件大小: 0K
描述: EVAL KIT FOR MAX5080
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
主要目的: DC/DC,步降
输出及类型: 1,非隔离
输出电压: 3.3V
电流 - 输出: 1A
输入电压: 4.5 ~ 40 V
稳压器拓扑结构: 降压
频率 - 开关: 250kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: MAX5080
1A, 40V, MAXPower Step-Down
DC-DC Converters
ABSOLUTE MAXIMUM RATINGS
IN, ON/ OFF to SGND..............................................-0.3V to +45V
LX to SGND .................................................-0.3V to (V IN + 0.3V)
BST to SGND ................................................-0.3V to (V IN + 12V)
BST to LX................................................................-0.3V to +12V
PGND to SGND .....................................................-0.3V to +0.3V
REG, DVREG, SYNC to SGND ...............................-0.3V to +12V
FB, COMP, SS to SGND ...........................-0.3V to (V REG + 0.3V)
C+ to PGND (MAX5080 only)................(V DVREG - 0.3V) to +12V
C- to PGND (MAX5080 only) ................-0.3V to (V DVREG + 0.3V)
Continuous current through internal power MOSFET (pins 11/12
connected together and pins 13/14 connected together)
T J = +125°C.........................................................................3A
T J = +150°C.........................................................................2A
Continuous Power Dissipation * (T A = +70°C)
16-Pin TQFN (derate 33.3mW/°C above +70°C) ...2666.7mW
16-Pin TQFN ( θ JA )........................................................30°C/W
16-Pin TQFN ( θ JC ).......................................................1.7°C/W
Operating Temperature Range .........................-40°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range .............................-60°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
* As per JEDEC 51 Standard
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 IN = V ON/ OFF = 12V, V REG = V DVREG , V SYNC = PGND = SGND, T A = T J = -40°C to +125°C, unless otherwise noted. Typical values
are at T A = + 25°C.) (Note 1)
PARAMETER
Input Voltage Range
Undervoltage Lockout Threshold
Undervoltage Lockout Hysteresis
Switching Supply Current (PWM
Operation)
SYMBOL
V IN
UVLO
UVLO HYST
I SW
CONDITIONS
MAX5080
MAX5081
V IN rising, MAX5080
V IN rising, MAX5081
MAX5080
MAX5081
V FB = 0V, MAX5080
V FB = 0V, MAX5081
MIN
4.5
7.5
3.9
6.8
TYP
0.4
0.7
10.5
9.5
MAX
40
40
4.2
7.3
UNITS
V
V
V
mA
V IN = 12V, V OUT = 3.3V, I OUT = 1A
84
Efficiency
V IN = 4.5V, V OUT = 3.3V, I OUT = 1A
(MAX5080)
88
%
No-Load Supply Current
(PFM Operation)
MAX5080
MAX5081
1.4
1.3
2.5
2.3
mA
Shutdown Current
I SHDN
V ON/ OFF = 0V, V IN = 40V
200
300
μA
ON/ OFF CONTROL
Input Voltage Threshold
V ON/ OFF
V ON/ OFF rising
1.20
1.23
1.25
V
Input Voltage Hysteresis
0.12
V
Input Bias Current
V ON/ OFF = 0 to 40V
-250
+250
nA
ERROR AMPLIFIER/SOFT-START
Soft-Start Current
Reference Voltage (Soft-Start)
I SS
V SS
8
1.215
15
1.228
24
1.240
μA
V
FB Regulation Voltage
V FB
I COMP = -500μA to +500μA
1.215
1.228
1.240
V
FB Input Range
FB Input Current
0
-250
1.5
+250
V
nA
COMP Voltage Range
Open-Loop Gain
Unity-Gain Bandwidth
I COMP = -500μA to +500μA
0.25
80
1.8
4.50
V
dB
MHz
2
_______________________________________________________________________________________
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