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参数资料
| 型号： | ADM00427 |
| 厂商： | Microchip Technology |
| 文件页数： | 3/32页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION MCP16323 |
| 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： | 3V |
| 电流 - 输出： | 3A |
| 输入电压： | 6 ~ 18 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 1MHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MCP16323 |
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MCP16323
1.0
ELECTRICAL
CHARACTERISTICS
? Notice: Stresses above those listed under “Absolute
Maximum Ratings” may cause permanent damage to
the device. This is a stress rating only and functional
Absolute Maximum Ratings?
V IN ....................................................................... -0.3V to 20V
SW ......................................................................... -1V to 20V
BOOST – GND ........................................... -0.3V to (V IN +6V)
operation of the device at those or any other conditions
above those indicated in the operational sections of this
specification is not intended. Exposure to maximum
rating conditions for extended periods may affect
device reliability.
EN,V FB , PG Voltage.............................................. -0.3V to 6V
Continuous Total Power Dissipation .......................................
...................................................See Thermal Characteristics
Storage Temperature ....................................-65°C to +150°C
Operating Junction Temperature...................-40°C to +125°C
ESD Protection On All Pins:
HBM ......................................................................... 3 kV
MM ..........................................................................200V
DC CHARACTERISTICS
Electrical Characteristics: Unless otherwise indicated, T A = +25°C, V IN = 12V, V OUT = 3.3V, I OUT = 300 mA,
L = 4.7 μH, C OUT = 2x22 μF, C IN = 2x10 μF. Boldface specifications apply over the T J range of -40°C to +125°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
V IN Supply Voltage
Input Voltage
V IN
6.0
—
18
V
Quiescent Current
(Switching)
Quiescent Current
(Non-Switching)
I Q
I Q
—
—
5.2
2.3
—
—
mA
mA
I OUT = 0 mA
Closed Loop in
Overvoltage
I OUT = 0 mA
Quiescent Current -
Shutdown
I Q
—
5
10
μA
EN = 0
V IN Under Voltage Lockout
Undervoltage Lockout Start
Undervoltage Lockout
Hysteresis
UVLO STRT
UVLO HYS
5.5
—
5.75
0.65
6.0
—
V
V
V IN Rising
Non-Switching
Output Characteristics
Maximum Output Current
I OUT
3
—
—
A
MCP16323
Output Voltage Adjust
Range
V OUT
0.9
—
5.0
V
Output Voltage Tolerance
in PWM Mode
V OUT-PWM
V OUT - 2%
V OUT
V OUT + 2%
V
I OUT = 1A
Output Voltage Tolerance
in PFM Mode
V OUT-PFM
V OUT - 1% V OUT + 1% V OUT + 3.5%
V
I OUT = 0A
Feedback Voltage
Feedback Reference
Tolerance
V FB
V FB-TOL
0.886
-1.5
0.9
—
0.914
1.5
V
%
Note 1:
2:
Regulator SW pin is forced off for 240 ns every 8 cycles to ensure the BOOST cap is replenished.
As a result of the maximum duty cycle limitations, 3A of output current for 5V output conditions may not
regulate the voltage. External component selection may have an impact on this. A minimum input voltage
of 6.5V is recommended.
? 2011 Microchip Technology Inc.
DS22284A-page 3
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