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參數(shù)資料
| 型號(hào)： | LT1268 |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
| 中文描述： | 射頻放大器 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 51K |
| 代理商： | LT1268 |
2
LT1268B/LT1268
A
Supply Voltage ....................................................... 30V
Switch Output Voltage............................................ 60V
Feedback Pin Voltage (Transient, 1ms) ................
±
15V
Operating Junction Temperature Range
Operating...............................................0
°
C to 125
°
C
Short-Circuit......................................... 0
°
C to 140
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
U
G
W
A
W
U
W
A
R
BSOLUTE
XI
TI
S
ORDER PART
NUMBER
W
U
U
PACKAGE/ORDER I FOR ATIO
ORDER PART
NUMBER
T
JMAX
= 125
°
C,
θ
JC
= 2
°
C/W,
θ
JA
= 50
°
C/W
LT1268CT
LT1268BCT
T
JMAX
= 125
°
C,
θ
JC
= 2
°
C/W,
θ
JA
= See Notes 5 and 6
Q PACKAGE
5-LEAD DD
FRONT VIEW
V
IN
V
SW
GND
FB
V
C
5
4
3
2
1
LT1268CQ
LT1268BCQ
T PACKAGE
5-LEAD TO-220
V
IN
V
SW
GND
FB
V
C
FRONT VIEW
5
4
3
2
1
SYMBOL
V
REF
PARAMETER
Reference Voltage Measured at
Feedback Pin (Note 4)
Reference Voltage
CONDITIONS
LT1268B
MIN
1.235
1.224
1.224
1.214
TYP
1.244
1.244
1.244
1.244
350
MAX
1.253
1.264
1.264
1.274
750
1100
6000
7000
350
400
2.30
0.52
0.03
UNITS
V
V
V
V
G
LT1268
G
I
B
Feedback Input Current
V
FB
= V
REF
nA
nA
G
g
m
Error Amplifier Transconductance
I
C
=
±
25
μ
A
3000
2400
150
120
1.80
0.25
4400
μ
mho
μ
mho
G
Error Amplifier Source or Sink Current
V
C
= 1.5V
200
μ
A
μ
A
V
V
G
Error Amplifier Clamp Voltage
Hi Clamp, V
FB
= 1V
Lo Clamp, V
FB
= 1.5V
3V
≤
V
IN
≤
V
MAX
, V
C
= 0.8V
0.9V
≤
V
C
≤
1.4V
0.38
Reference Voltage Line Regulation
G
%/V
A
V
Error Amplifier Voltage Gain
Minimum Input Voltage
Supply Current
Control Pin Threshold
500
800
2.8
7
0.9
V/V
G
3.0
10
1.08
1.25
V
I
Q
3V
≤
V
IN
≤
V
MAX
, V
C
= 0.6V
Duty Cycle = 0
mA
0.7
0.5
V
V
G
BV
V
SAT
Output Switch Breakdown Voltage
Output Switch-ON Resistance
(Note 1, 3)
Control Voltage to Switch
Current Transconductance
Switch Current Limit (Note 3, 6)
3V
≤
V
IN
≤
V
MAX
, I
SW
= 1.5mA
T
J
≤
100
°
C
T
J
≤
125
°
C
G
60
75
0.12
V
0.18
0.22
12
A/V
I
LIM
Duty Cycle = 50%, T
J
≤
100
°
C
Duty Cycle = 65%, T
J
≤
100
°
C
G
G
7.50
6.50
15
14
A
A
V
IN
= 15V, V
C
= 0.5V, V
FB
= V
REF
, switch pin open, unless otherwise noted.
ELECTRICAL C
HARA TERISTICS
Consult factory for Industrial and Military parts
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1268B | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
| LT1269 | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
| LT1271 | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
| LT1270 | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
| LT1270A | 500kHz and 1MHz High Efficiency 1.5A Switching Regulators; Package: SO; No of Pins: 8; Temperature Range: -40?°C to 85?°C |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1268B | 制造商:LINER 制造商全稱:Linear Technology 功能描述:7.5A, 150kHz Switching Regulators |
| LT1268BCQ | 功能描述:IC REG BUCK INV FLYBK ADJ D2PAK 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:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 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:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LT1268BCQ#PBF | 功能描述:IC REG BUCK INV FLYBK ADJ D2PAK RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 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:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LT1268BCQ#TR | 功能描述:IC REG BUCK INV FLYBK ADJ D2PAK 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:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 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:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LT1268BCQ#TRPBF | 功能描述:IC REG BUCK INV FLYBK ADJ D2PAK RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關(guān):- 電流 - 輸出:100mA 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:SOT-23-5 細(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
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