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參數(shù)資料
| 型號(hào)： | LT1500IS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 1.3 A SWITCHING REGULATOR, 500 kHz SWITCHING FREQ-MAX, PDSO14 |
| 封裝： | 0.150 INCH, PLASTIC, SO-14 |
| 文件頁數(shù)： | 14/16頁 |
| 文件大小： | 190K |
| 代理商： | LT1500IS |
14
LT1500/LT1501
APPLICATIO
S I
FOR
ATIO
U
capacitors may require the capacitor to be larger. To
ensure proper reset of the soft start capacitor, an external
resistor must be connected in parallel with the capacitor.
The resistor value should be 470k or more.
W
U
U
Calculating Temperature Rise
For most applications, temperature rise in the IC will be
fairly low and will not be a problem. However, if load
currents are near the maximum allowed and ambient
temperatures are also high, a calculation should be done
to ensure that the maximum junction temperature of
100
°
C is not exceeded. The calculations must account for
power dissipation in the switch, the drive circuitry and the
sense resistor.
P
I
R
V
V
V
V
I
V
V
R
V
V
(
TOTAL
OUT
SW
OUT
)
)
+
OUT
IN
IN
OUT
OUT
30
IN
SENSE OUT
OUT
IN
=
(
) (
)(
(
)
(
)
+
(
)
2
2
2
2
·
)
P
TOTAL
= total device power dissipation
R
SW
= switch resistance (0.72
max)
R
SENSE
= sense resistance (0.42
max)
With V
IN
= –2.2V, V
OUT
= 5V, I
OUT
= 150mA, an 8-pin SO
package and maximum ambient temperature of 85
°
C
(industrial range),
P
W
TOTAL
=
(
) (
)
)
)
(
+
)
+
(
)
.
=
=
015
.
072 5 5 22
2
.
22
015 5 22
30
042 015 5
.
22
.
047 0014 0049
.
011
.
2
2
2
.
.
.
.
.
·
.
The SO package has a thermal resistance of 120
°
C/W, so
maximum device temperature will be:
T
JMAX
= 85
°
C + 0.11W(120
°
C/W) = 98
°
C
PACKAGE DESCRIPTIO
N
U
Dimensions in inches (millimeters) unless otherwise noted.
1
2
3
4
0.150 – 0.157**
(3.810 – 3.988)
8
7
6
5
0.189 – 0.197*
(4.801 – 5.004)
0.228 – 0.244
(5.791 – 6.197)
0.016 – 0.050
0.406 – 1.270
0.010 – 0.020
(0.254 – 0.508)
×
45
°
0
°
– 8
°
TYP
0.008 – 0.010
(0.203 – 0.254)
SO8 0695
0.053 – 0.069
(1.346 – 1.752)
0.014 – 0.019
(0.355 – 0.483)
0.004 – 0.010
(0.101 – 0.254)
0.050
(1.270)
BSC
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
*
**
S8 Package
8-Lead Plastic Small Outline (Narrow 0.150)
(LTC DWG # 05-08-1610)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1500IS-3 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Adaptive-Frequency Current Mode Switching Regulators |
| LT1500IS-3/5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Mode SMPS Controller |
| LT1500IS-5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Adaptive-Frequency Current Mode Switching Regulators |
| LT1501 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Adaptive-Frequency Current Mode Switching Regulators |
| LT1501CS8 | 功能描述:IC REG BST CUK FLYBACK ADJ 8SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)包裝:20 系列:SIMPLE SWITCHER® 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:12V 輸入電壓:4 V ~ 60 V PWM 型:電壓模式 頻率 - 開關(guān):52kHz 電流 - 輸出:1A 同步整流器:無 工作溫度:-40°C ~ 125°C 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 包裝:管件 供應(yīng)商設(shè)備封裝:16-DIP 其它名稱:*LM2575HVN-12LM2575HVN-12 |
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