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| 型号： | MCP1253-ADJI/MS |
| 厂商： | Microchip Technology |
| 文件页数： | 3/18页 |
| 文件大小： | 0K |
| 描述： | IC REG MULTI CONFIG ADJ 8MSOP |
| 标准包装： | 100 |
| 类型： | 降压（降压），升压（升压），切换电容（充电泵） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.5 V ~ 5.5 V |
| 输入电压： | 2 V ~ 5.5 V |
| 频率 - 开关： | 1MHz |
| 电流 - 输出： | 120mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 管件 |
| 供应商设备封装： | 8-MSOP |
| 产品目录页面： | 663 (CN2011-ZH PDF) |
MCP1252/3
1.0
ELECTRICAL
PIN FUNCTION TABLE
CHARACTERISTICS
Absolute Maximum Ratings ?
Power Supply Voltage, V IN ...............................................6.0V
Voltage on Any Pin w.r.t. GND ............... -0.3V to (V IN + 0.3V)
Output Short Circuit Duration ................................continuous
Storage Temperature Range.........................-65°C to +150°C
Ambient Temperature with Power Applied ....-55°C to +125°C
Junction Temperature ................................................. +150°C
ESD Ratings:
Human Body Model (1.5 k ? in Series with 100 pF ...... ≥ 4 kV
Machine Body Model (200 pF, No Series Resistance ≥ 400V
Name
PGOOD
V OUT
V IN
GND
C-
C+
SHDN
SELECT
FB
Function
Open-Drain Power GOOD Output
Regulated Output Voltage
Power Supply Input
Ground Terminal
Flying Capacitor Negative Terminal
Flying Capacitor Positive Terminal
Shutdown Mode, Active-Low Input
Output Voltage Select Pin.
(MCP1252-33X50, MCP1253-33X50)
Feedback Input Pin for Adjustable Output
(MCP1252-ADJ, MCP1253-ADJ)
?Notice: Stresses above those listed under “Maximum Rat-
ings” may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operational listings of this specification is not implied. Expo-
sure to maximum rating conditions for extended periods may
affect device reliability.
ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, all limits are specified for T A = -40°C to +85°C, SHDN = V IN ,
C IN = C OUT = 10 μF, C FLY = 1 μF, I OUT = 10 mA. Typical values are for T A = +25°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Selectable Output - MCP1252-33X50, MCP1253-33X50: SELECT = V IN , V OUT = 3.3V
Supply Voltage
V IN
2.1
—
5.5
V
Output Voltage Accuracy
Output Current
SELECT Logic Input Voltage High
V OUT
I OUT
V IH
-2.5
80
120
1.4
+/-0.5
100
150
—
+2.5
—
—
%
mA
mA
V
2.3V ≤ V IN < 2.5V, I OUT ≤ 80 mA
2.5V ≤ V IN ≤ 5.5V, I OUT ≤ 120 mA
2.3V ≤ V IN < 2.5V
2.5V ≤ V IN ≤ 5.5V
MCP1252-33X50, MCP1253-33X50
Selectable Output - MCP1252-33X50, MCP1253-33X50: SELECT = GND, V OUT = 5.0V
Supply Voltage
V IN
2.7
—
5.5
V
Output Voltage Accuracy
Output Current
SELECT Logic Input Voltage Low
V OUT
I OUT
V IL
-2.5
40
120
—
+/-0.5
80
150
—
+2.5
—
0.4
%
mA
mA
V
2.7V ≤ V IN < 3.0V, I OUT ≤ 40 mA
3.0V ≤ V IN ≤ 5.5V, I OUT ≤ 120 mA
2.7V ≤ V IN < 3.0V
3.0V ≤ V IN ≤ 5.5V
MCP1252-33X50, MCP1253-33X50
Adjustable Output - MCP1252-ADJ, MCP1253-ADJ
Supply Voltage
V IN
2.0
—
5.5
V
Output Voltage Adjustment Range
FB Regulation Voltage
V OUT
V FB
1.5
1.18
—
1.21
5.5
1.24
V
V
V OUT(MAX) < 2 x V IN
MCP1252-ADJ, MCP1253-ADJ
ALL DEVICES
Supply Current
Output Short-Circuit Current
Shutdown Current
Power Efficiency
SHDN Logic Input Voltage Low
SHDN Logic Input Voltage High
PGOOD Threshold Voltage
PGOOD Hysteresis
I DD
I SC
I SHDN
η
V IL
V IH
V TH
V HYS
—
—
—
—
—
1.4
—
—
60
200
0.1
81
68
—
—
0.93V OUT
0.04V OUT
120
—
2.0
—
0.4
—
—
—
μA
mA
μA
%
%
V
V
V
V
No load
V OUT = GND, foldback current
SHDN = 0V
V IN = 3.0V, V OUT = 5V
V IN = 3.6V, V OUT = 5V
I OUT =120 mA
? 2002 Microchip Technology Inc.
DS21752A-page 3
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