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參數(shù)資料
| 型號： | LP38691DTX-5.0 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors |
| 中文描述： | 5 V FIXED POSITIVE LDO REGULATOR, 0.45 V DROPOUT, PSSO2 |
| 封裝： | TO-252, 3 PIN |
| 文件頁數(shù)： | 5/15頁 |
| 文件大?。?/td> | 793K |
| 代理商： | LP38691DTX-5.0 |
Electrical Characteristics
Limits in standard typeface are for T
J
= 25C, and limits in
boldface type
apply
over the full operating temperature range. Unless otherwise specified: V
= V
+ 1V, C
IN
= C
OUT
= 10 μF, I
LOAD
= 10mA.
Min/Max limits are guaranteed through testing, statistical correlation, or design. (Continued)
Symbol
Parameter
Conditions
MIN
TYP
(Note 4)
MAX
Units
e
n
Output Noise
BW = 10Hz to 10kHz
V
O
= 3.3V
V
O
= V
O
(NOM) + 1V
@
10V
IN
Output = OFF
Output = ON, V
IN
= 4V
Output = ON, V
IN
= 6V
Output = ON, V
IN
= 10V
V
EN
= 0V or 10V, V
IN
= 10V
0.7
μV/
V
O
(LEAK)
V
EN
Output Leakage Current
Enable Voltage (LP38693 Only)
0.5
12
0.4
μA
V
1.8
3.0
4.0
-1
I
EN
Enable Pin Leakage (LP38693
Only)
0.001
1
μA
Note 1:
Absolute maximum ratings indicate limits beyond which damage to the component may occur. Operating ratings indicate conditions for which the device
is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications, see Electrical Characteristics. Specifications do not
apply when operating the device outside of its rated operating conditions.
Note 2:
At elevated temperatures, device power dissipation must be derated based on package thermal resistance and heatsink values (if a heatsink is used). The
junction-to-ambient thermal resistance (
θ
J-A
) for the TO-252 is approximately 90C/W for a PC board mounting with the device soldered down to minimum copper
area (less than 0.1 square inch). If one square inch of copper is used as a heat dissipator for the TO-252, the
θ
J-A
drops to approximately 50C/W. The SOT-223
package has a
θ
J-A
of approximately 125C/W when soldered down to a minimum sized pattern (less than 0.1 square inch) and approximately 70C/W when soldered
to a copper area of one square inch. The
θ
J-A
values for the LLP package are also dependent on trace area, copper thickness, and the number of thermal vias used
(refer to application note AN-1187). If power disspation causes the junction temperature to exceed specified limits, the device will go into thermal shutdown.
Note 3:
ESD is tested using the human body model which is a 100pF capacitor discharged through a 1.5k resistor into each pin.
Note 4:
Typical numbers represent the most likely parametric norm for 25C operation.
Note 5:
If used in a dual-supply system where the regulator load is returned to a negative supply, the output pin must be diode clamped to ground.
Note 6:
Output voltage line regulation is defined as the change in output voltage from nominal value resulting from a change in input voltage.
Note 7:
Output voltage load regulation is defined as the change in output voltage from nominal value as the load current increases from 1mA to full load.
Note 8:
Dropout voltage is defined as the minimum input to output differential required to maintain the output within 100mV of nominal value.
L
www.national.com
5
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP38691QSD-1.8 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors |
| LP38691QSD-1.8/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO 500mA Low Dropout CMOS Linear Reg 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 |
| LP38691QSD-2.5 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors |
| LP38691QSD-2.5/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO 500mA Low Dropout CMOS Linear Reg 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 |
| LP38691QSD-3.3 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LP38693 500mA Low Dropout CMOS Linear Regulators Stable with Ceramic Output Capacitors |
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