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參數(shù)資料
| 型號： | MCP1827-5002EET |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 1.5A, Low Voltage, Low Quiescent Current LDO Regulator |
| 中文描述： | 1.5安培的電流，低電壓，低靜態(tài)電流LDO穩(wěn)壓器 |
| 文件頁數(shù)： | 7/32頁 |
| 文件大小： | 968K |
| 代理商： | MCP1827-5002EET |
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2006 Microchip Technology Inc.
DS22001B-page 7
MCP1827/MCP1827S
Voltage Regulation
V
OUT
V
R
- 2.5%
V
R
±0.5%
V
R
+ 2.5%
V
Note 2
Dropout Characteristics
Dropout Voltage
V
IN
-V
OUT
—
330
600
mV
Note 5
, I
OUT
= 1.5A,
V
IN(MIN)
= 2.3V
Power Good Characteristics
PWRGD Input Voltage Operat-
ing Range
V
PWRGD_VIN
1.0
—
6.0
V
T
A
= +25°C
T
A
= -40°C to +125°C
For V
IN
< 2.3V, I
SINK
= 100 μA
Falling Edge
1.2
—
6.0
PWRGD Threshold Voltage
(Referenced to V
OUT
)
V
PWRGD_TH
%V
OUT
89
92
95
V
OUT
< 2.5V Fixed, V
OUT
= Adj.
V
OUT
>= 2.5V Fixed
90
92
94
PWRGD Threshold Hysteresis
V
PWRGD_HYS
V
PWRGD_L
1.0
2.0
3.0
%V
OUT
V
PWRGD Output Voltage Low
—
0.2
0.4
I
PWRGD
SINK
= 1.2 mA,
ADJ = 0V
PWRGD Leakage
P
WRGD
_
LK
T
PG
—
1
—
nA
V
PWRGD
= V
IN
= 6.0V
Rising Edge
R
PULLUP
= 10 k
Ω
V
ADJ
or V
OUT
= V
PWRGD_TH
+
20 mV to V
PWRGD_TH
- 20 mV
PWRGD Time Delay
—
200
—
μs
Detect Threshold to PWRGD
Active Time Delay
T
VDET-PWRGD
—
200
—
μs
Shutdown Input
Logic High Input
V
SHDN-HIGH
V
SHDN-LOW
SHDN
ILK
45
%V
IN
%V
IN
μA
V
IN
= 2.3V to 6.0V
V
IN
= 2.3V to 6.0V
V
IN
= 6V, SHDN =V
IN
,
SHDN = GND
Logic Low Input
15
SHDN Input Leakage Current
-0.1
±0.001
+0.1
AC Performance
Output Delay From SHDN
T
OR
100
μs
SHDN = GND to V
IN
V
OUT
= GND to 95% V
R
I
OUT
= 200 mA, f = 1 kHz, C
OUT
= 10 μF (X7R Ceramic), V
OUT
=
2.5V
Output Noise
e
N
—
2.0
—
μV/
√
Hz
AC/DC CHARACTERISTICS (CONTINUED)
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
Sym
Min
Typ
Max
Units
Conditions
Note
1:
2:
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
voltage for the adjustable cases. V
R
= V
ADJ
*
((R
1
/R
2
)+1). Figure 4-1.
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
IN =
V
OUTMAX
+ 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.
3:
4:
5:
6:
7:
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCP1827-ADJE/AT | 功能描述:低壓差穩(wěn)壓器 - LDO LDO 1.5A CMOS RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MCP1827-ADJE/AT | 制造商:Microchip Technology Inc 功能描述:1.5A CMOS LDO Vout=5.0V Extended Temp |
| MCP1827-ADJE/ET | 功能描述:低壓差穩(wěn)壓器 - LDO LDO 1.5A CMOS RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| MCP1827-ADJE/ET | 制造商:Microchip Technology Inc 功能描述:; LEADED PROCESS COMPATIBLE:YES; PEAK RE |
| MCP1827S-0802E/AB | 功能描述:低壓差穩(wěn)壓器 - LDO LDO 1.5A CMOS RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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