参数资料
| 型号： | MCP1727T-ADJE/MF |
| 厂商： | Microchip Technology |
| 文件页数： | 5/32页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ 1.5A 8DFN |
| 产品培训模块： | High Current LDOs |
| 标准包装： | 3,300 |
| 稳压器拓扑结构： | 正，可调式 |
| 输出电压： | 0.8 V ~ 5 V |
| 输入电压： | 2.3 V ~ 6 V |
| 电压 - 压降（标准）： | 0.33V @ 1.5A |
| 稳压器数量： | 1 |
| 电流 - 输出： | 1.5A（最小） |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-VDFN 裸露焊盘 |
| 供应商设备封装： | 8-DFN-EP（3x3） |
| 包装： | 带卷 (TR) |
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MCP1727
1.0
ELECTRICAL
CHARACTERISTICS
? 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
Absolute Maximum Ratings ?
V IN ....................................................................................6.5V
operational listings of this specification is not implied. Expo-
sure to maximum rating conditions for extended periods may
affect device reliability.
Maximum Voltage on Any Pin .. (GND – 0.3V) to (V DD + 0.3)V
Output Short Circuit Duration ................................ Continuous
Storage temperature .....................................-65°C to +150°C
Maximum Junction Temperature, T J ........................... +150°C
ESD protection on all pins (HBM/MM) ........... ≥ 2 kV; ≥ 200V
AC/DC CHARACTERISTICS
Electrical Specifications: Unless otherwise noted, V IN = V OUT(MAX) + V DROPOUT(MAX) (Note 1) , V R =1.8V for Adjustable Output,
I OUT = 1 mA, C IN = C OUT = 4.7 μF (X7R Ceramic), T A = +25°C.
Boldface type applies for junction temperatures, T J ( Note 7 ) of -40°C to +125°C
Parameters
Input Operating Voltage
Input Quiescent Current
Input Quiescent Current for
SHDN Mode
Maximum Output Current
Line Regulation
Load Regulation
Output Short Circuit Current
Sym
V IN
I q
I SHDN
I OUT
Δ V OUT /
(V OUT x Δ V IN )
Δ V OUT /V OUT
I OUT_SC
Min
2.3
—
—
1.5
—
-1.0
—
Typ
120
0.1
—
0.05
±0.5
2.2
Max
6.0
220
3
—
0.16
1.0
—
Units
V
μA
μA
A
%/V
%
A
Conditions
V OUT = 0.8V to 5.0V
SHDN = GND
V IN = 2.3V to 6.0V
I OUT = 1 mA to 1.5A,
V IN = Note 1 , R LOAD < 0.1 Ω ,
Peak Current
Adjust Pin Characteristics (Adjustable Output Only)
Adjust Pin Reference Voltage
Adjust Pin Leakage Current
Adjust Temperature Coefficient
V ADJ
I ADJ
TCV OUT
0.402
-10
—
0.410
±0.01
40
0.418
+10
—
V
nA
ppm/°C
V IN = 2.3V to V IN = 6.0V,
I OUT = 1 mA
V IN = 6.0V, V ADJ = 0V to 6V
Fixed-Output Characteristics (Fixed Output Only)
Voltage Regulation
V OUT
V R - 2.5%
V R
±0.5%
V R + 2.5%
V
Note 1:
2:
3:
4:
5:
6:
7:
The minimum V IN must meet two conditions: V IN ≥ 2.3V and V IN ≥ V OUT(MAX) + V DROPOUT(MAX).
V R is the nominal regulator output voltage for the fixed cases. V R = 1.2V, 1.8V, etc. V R is the desired set point output
TCV OUT = (V OUT-HIGH – V OUT-LOW ) *10 6 / (V R * Δ Temperature). V OUT-HIGH is the highest voltage measured over the
temperature range. V OUT-LOW is the lowest voltage measured over the temperature range.
Load regulation is measured at a constant junction temperature using low duty-cycle pulse testing. Load regulation is
tested over a load range from 1 mA to the maximum specified output current.
Dropout voltage is defined as the input-to-output voltage differential at which the output voltage drops 2% below its
nominal value that was measured with an input voltage of V OUT = V R + V DROPOUT(MAX) .
The maximum allowable power dissipation is a function of ambient temperature, the maximum allowable junction
temperature and the thermal resistance from junction to air. (i.e., T A , T J , θ JA ). Exceeding the maximum allowable power
dissipation will cause the device operating junction temperature to exceed the maximum +150°C rating. Sustained
junction temperatures above 150°C can impact device reliability.
The junction temperature is approximated by soaking the device under test at an ambient temperature equal to the
desired junction temperature. The test time is small enough such that the rise in the junction temperature over the
ambient temperature is not significant.
? 2007 Microchip Technology Inc.
DS21999B-page 5
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