參數資料
型號： MCP1725
廠商： Microchip Technology Inc.
英文描述： 500 mA, Low Voltage, Low Quiescent Current LDO Regulator
中文描述： 500毫安，低電壓，低靜態(tài)電流LDO穩(wěn)壓器
文件頁數： 7/32頁
文件大?。?/td> 1000K
代理商： MCP1725
2006 Microchip Technology Inc.
DS22026A-page 7
MCP1725
TEMPERATURE SPECIFICATIONS
Electrical Specifications:
Unless otherwise indicated, all limits apply for V
IN
= 2.3V to 6.0V.
Parameters
Sym
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
f = 100 Hz, C
OUT
= 10 μF,
I
OUT
= 10 mA,
V
INAC
= 30 mV pk-pk,
C
IN
= 0 μF
I
OUT
= 100 μA, V
OUT
= 1.8V,
V
IN
= 2.8V
I
OUT
= 100 μA, V
OUT
= 1.8V,
V
IN
= 2.8V
Output Noise
e
N
—
2.0
—
μV/
√
Hz
Power Supply Ripple Rejection
Ratio
PSRR
—
60
—
dB
Thermal Shutdown Temperature
T
SD
—
150
—
°C
Thermal Shutdown Hysteresis
Δ
T
SD
—
10
—
°C
Min
Typ
Max
Units
Conditions
Temperature Ranges
Operating Junction Temperature Range
Maximum Junction Temperature
Storage Temperature Range
Thermal Package Resistances
Thermal Resistance, 8LD 2x3 DFN
T
J
T
J
T
A
-40
—
-65
—
—
—
+125
+150
+150
°C
°C
°C
Steady State
Transient
θ
JA
—
52
—
°C/W
4-Layer JC51-7
Standard Board with
vias
4-Layer JC51-7
Standard Board
Thermal Resistance, 8LD SOIC
θ
JA
—
150
—
°C/W
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
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.
3:
4:
5:
6:
7:
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相關代理商/技術參數
參數描述
MCP1725-0802E/MC 功能描述:低壓差穩(wěn)壓器 - LDO 500mA CMOS LDO Vout=0.8V 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 負載調節(jié):0.3 % 輸出端數量: 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
MCP1725-0802E/SN 功能描述:低壓差穩(wěn)壓器 - LDO 500mA CMOS LDO Vout=0.8V 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 負載調節(jié):0.3 % 輸出端數量: 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
MCP1725-1202E/MC 功能描述:低壓差穩(wěn)壓器 - LDO 500mA CMOS LDO Vout=1.2V 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 負載調節(jié):0.3 % 輸出端數量: 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
MCP1725-1202E/SN 功能描述:低壓差穩(wěn)壓器 - LDO 500mA CMOS LDO Vout=1.2V 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 負載調節(jié):0.3 % 輸出端數量: 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
MCP1725-1802E/MC 功能描述:低壓差穩(wěn)壓器 - LDO 500mA CMOS LDO Vout=1.8V 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 負載調節(jié):0.3 % 輸出端數量: 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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