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参数资料
| 型号： | LT1082IQ#TR |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 2.8 A SWITCHING REGULATOR, 75 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封装： | PLASTIC, D2PAK-5 |
| 文件页数： | 8/12页 |
| 文件大小： | 179K |
| 代理商： | LT1082IQ#TR |
5
LT1082
sn1082 1082fas
CC
HARA TERISTICS
UW
A
TYPICALPERFOR
CE
Isolated Mode Flyback
Reference Voltage
TEMPERATURE (
°C)
FLYBACK
VOLTAGE
(V)
25
24
23
22
21
20
19
18
17
16
15
1082 G09
–75 –50
50
100
25
150 175
–25 0
75
125
RFB = 3k
RFB = 6k
RFB = 10k
Supply Current vs Input Voltage**
SUPPLY VOLTAGE (V)
0
SUPPLY
CURRENT
(
A)
200
160
120
80
40
0
30
50
80
1082 G15
10
20
40
60
70
VC = 50mV
VC = 0V
Supply Current vs Supply Voltage
(Shutdown Mode)
INPUT VOLTAGE (V)
0
SUPPLY
CURRENT
(mA)
20
40
60
80
1082 G14
14
13
12
11
10
9
8
7
6
5
4
3
2
10
30
50
70
90% DUTY CYCLE
50% DUTY CYCLE
10% DUTY CYCLE
0% DUTY CYCLE
**UNDER VERY LOW OUTPUT CURRENT CONDITIONS,
DUTY CYCLE FOR MOST CIRCUITS WILL APPROACH
10% OR LESS.
Feedback Bias Current vs
Temperature
TEMPERATURE (
°C)
FEEDBACK
BIAS
CURRENT
(nA)
1082 G12
800
700
600
500
400
300
200
100
0
–75 –50
50
100
25
150 175
–25 0
75
125
Normal/Feedback Mode
Threshold on Feedback Pin
TEMPERATURE (
°C)
V
C
PIN
VOLTAGE
(mV)
750
725
700
675
650
625
600
575
550
525
500
1082 G16
–75 –50
50
100
25
150 175
–25 0
75
125
–24
–22
–20
–18
–16
–14
–12
–10
–8
–6
–4
V
C PIN
CURRENT
(
A)
FEEDBACK PIN VOLTAGE
(AT THRESHOLD)
FEEDBACK PIN CURRENT
(AT THRESHOLD)
VC PIN VOLTAGE (mV)
SUPPLY
CURRENT
(
A)
200
180
160
140
120
100
80
60
40
20
0
1082 G17
0
10
50
70
40
90 100
20 30
60
80
–55
°C ≤ TJ ≤ 125°C
TJ = 150°C
Shutdown Mode Supply Current
Reference Voltage and Switching
Frequency vs Temperature
TEMPERATURE (
°C)
FREQUENCY
(kHz)
70
65
60
55
50
45
1082 G11
1.250
1.245
1.240
1.235
1.230
1.225
REFERENCE
VOLTAGE
(V)
–75 –50
50
100
25
150 175
–25 0
75
125
FREQ
VREF
INPUT VOLTAGE (V)
0
REFERENCE
VOLTAGE
CHANGE
(mV)
5
4
3
2
1
0
–1
–2
–3
–4
–5
20
40
50
1082 G10
10
30
60
70
80
TJ = 25°C
TJ = –55°C
TJ = 150°C
Line Regulation
SWITCH CURRENT (A)
DRIVER
CURRENT
(mA)
100
90
80
70
60
50
40
30
20
10
0
1082 G13
0
0.2
1.0
1.4
0.8
1.8 2.0
0.4 0.6
1.2
1.6
* AVERAGE SUPPLY CURRENT
= IQ + DC(2.9 + 10
–2 ISW + 10–5ISW2)
IQ = QUIESCENT CURRENT, DC = DUTY CYCLE,
ISW = SWITCH CURRENT
Driver Current* vs Switch Current
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相关代理商/技术参数 |
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| LT1082IT | 功能描述:IC REG MULTI CONFIG 1A TO220-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称:AS1323-BTTT-30CT |
| LT1082IT#06 | 制造商:Linear Technology 功能描述:1A High Voltage, Efficiency Switching Voltage Regulator |
| LT1082IT#30PBF | 制造商:Linear Technology 功能描述:IC REG MULTI CONFIG 1A TO220-5 |
| LT1082IT#PBF | 功能描述:IC REG MULTI CONFIG 1A TO220-5 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LT1082IT#PBF | 制造商:Linear Technology 功能描述:Switching Regulator IC |
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