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參數(shù)資料
| 型號(hào)： | LT1501 |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關(guān)穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 4/16頁(yè) |
| 文件大?。?/td> | 190K |
| 代理商： | LT1501 |
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4
LT1500/LT1501
ELECTRICAL CHARACTERISTICS
The
G
denotes specifications which apply over the full operating
temperature range.
Note 1:
Feedback pin or output is held sightly above the regulated value to
force the V
C
node low and switching to stop.
Note 2:
See Typical Performance Characteristics for graph of Guaranteed
Switch Voltage vs Saturation Voltage.
Note 3:
Peak switch current is the guaranteed minimum value of switch
current available in normal operation. Highest calculated switch current at
full load should not exceed the minimum value shown.
Note 4:
Loading on FB pin will affect NFB reference voltage.
V
NFB
= I
FB
/gm.
Do not exceed 10
μ
A loading on FB when NFB is being used.
Note 5:
This is the delay between sense pin current reaching its upper or
lower threshold and switch transition. Switch delay times cause peak-to-
peak inductor current to increase and therefore switching frequency to be
low. This effect will be significant for frequencies above 100kHz. See
Application Information and Typical Performance Characteristics.
Note 6:
Reference voltage under all conditions includes V
IN
= 2.1V to 15V,
all loads and full temperature range.
Note 7:
As with all boost regulators the output voltage of the LT1500
cannot fall to less than input voltage because of the path through the catch
diode. This means that the output voltage divider on adjustable parts will
still be generating feedback voltage at the FB pin (fixed voltage parts have
an internal switch to disconnect the divider in shutdown). If the voltage on
FB is greater than 0.6V in shutdown, the internal error amplifier will draw
current that adds to shutdown current. See graph of Shutdown Current vs
FB voltage in Typical Performance Characteristics.
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
Switching Frequency
(3.3V Output)
LOAD CURRENT (mA)
0
50
100
10
F
100
1000
150
200
250
300
LTC1500/01 TPC20
10
μ
H
20
μ
H
50
μ
H
100
μ
H
BURST REGION
VIN = 2.3V
Switching Frequency (5V Output)
LOAD CURRENT (mA)
0
50
100
10
F
100
1000
150
200
250
300
LTC1500/01 TPC21
10
μ
H
20
μ
H
50
μ
H
100
μ
H
BURST REGION
VIN = 3V
Switching Frequency (12V Output)
LOAD CURRENT (mA)
0
25
50
75
F
1000
100
10
100 125 150 175
200
LTC1500/01 TPC22
10
μ
H
50
μ
H
20
μ
H
100
μ
H
BURST REGION
VIN = 5V
Efficiency (3.3V Output)
LOAD CURRENT (mA)
1
E
100
90
80
70
60
50
40
30
10
100
1000
LTC1500/01 TPC17
T
J
= 25
°
C
V
= 2.3V
LOW LOSS INDUCTOR
L = 100
μ
H
L = 10
μ
H
L = 33
H
Efficiency (5V Output)
100
LOAD CURRENT (mA)
1
E
90
80
70
60
50
40
30
10
100
1000
LTC1500/01 TPC18
V
= 3V
LOW LOSS INDUCTOR
L = 100
μ
H
L = 10
μ
H
L = 33
μ
H
Efficiency (12V Output)
LOAD CURRENT (mA)
1
E
100
90
80
70
60
50
40
30
10
100
1000
LTC1500/01 TPC19
V
IN
= 5V
LOW LOSS INDUCTOR
L = 100
μ
H
L = 10
μ
H
L = 33
μ
H
相關(guān)PDF資料 |
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| LT1501CS8 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1501CS8-3.3 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1501CS8-5 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1501IS8-3.3 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| LT1501IS8-5 | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(wú) 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 |
| LT1501CS8-3.3 | 功能描述:IC REG BST CUK FLYBK 3.3V 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:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關(guān):2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)品目錄頁(yè)面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LT1501CS8-5 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Adaptive-Frequency Current Mode Switching Regulators |
| LT1501G | 制造商:DIODES 制造商全稱:Diodes Incorporated 功能描述:1.5A GLASS PASSIVATED RECTIFIER |
| LT1501IS8 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Adaptive-Frequency Current Mode Switching Regulators |
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