參數(shù)資料
型號： MCP1726
廠商： Microchip Technology Inc.
元件分類： 基準電壓源/電流源
英文描述： 1A, Low Voltage, Low Quiescent Current LDO Regulator
中文描述： 1A中，低電壓，低靜態(tài)電流LDO穩(wěn)壓器
文件頁數(shù)： 5/30頁
文件大小： 431K
代理商： MCP1726
2005 Microchip Technology Inc.
DS21936B-page 5
MCP1726
Fixed-Output Characteristics
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
—
220
500
mV
I
OUT
= 1A, V
IN(MIN)
= 2.3V
(
Note 5
)
Power Good Characteristics
Input Voltage Operating Range
for Valid PWRGD
V
PWRGD_VIN
1.0
1.2
—
—
6.0
6.0
V
T
A
= +25°C
T
A
= -40°C to +125°C
I
SINK
= 100 μA
V
OUT
< 2.5V, Falling Edge
V
OUT
> 2.5V, Falling Edge
V
OUT
< 2.5V, Rising Edge
V
OUT
> 2.5V, Rising Edge
I
PWRGD
SINK
= 1.2 mA
V
PWRGD
= V
IN
= 6.0V
C
DELAY
= OPEN
C
DELAY
= 0.01 μF
C
DELAY
= 0.1 μF
PWRGD Threshold Voltage
(Referenced to V
OUT
)
PWRGD_THF
88
89
89
90
—
—
—
10
—
—
92
92
94
93
0.2
0.1
200
30
300
170
96
95
98
96
0.4
—
—
55
—
—
%
%
%
%
V
μA
μs
ms
ms
μs
PWRGD_THR
PWRGD Output Voltage Low
PWRGD Leakage
PWRGD Time Delay
V
PWRGD_L
P
WRGD
_
LK
T
PG
Detect Threshold to PWRGD
Active Time Delay
Shutdown Input
Logic-High Input
Logic-Low Input
SHDN Input Leakage Current
T
VDET-PWRGD
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
15
+0.1
-0.1
±0.001
DC CHARACTERISTICS (Continued)
Electrical Specifications:
Unless otherwise noted, V
IN
= (V
R
+ 0.5V) or 2.3V, whichever is greater, 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:
The minimum V
IN
must meet two conditions: V
IN
≥
2.3V and V
IN
≥ (
V
R
+
2.5%
) +
V
DROPOUT.
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
R
+ 0.5V.
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
J
A
). Exceeding the maxi-
mum allowable power dissipation will cause the device operating junction temperature to exceed the maxi-
mum 150°C rating. Sustained junction temperatures above 125°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.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MCP1726-0802E/MF 功能描述:低壓差穩(wěn)壓器 - LDO 1A .8V Vout Extended Temp 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
MCP1726-0802E/SN 功能描述:低壓差穩(wěn)壓器 - LDO 1A .8V Vout Extended Temp 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
MCP1726-1202E/MF 功能描述:低壓差穩(wěn)壓器 - LDO 1A 1.2V Vout Extended Temp 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
MCP1726-1202E/SN 功能描述:低壓差穩(wěn)壓器 - LDO 1A 1.2V Vout Extended Temp 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
MCP1726-1802E/MF 功能描述:低壓差穩(wěn)壓器 - LDO 1A 1.8V Vout Extended Temp 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20
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