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参数资料
| 型号： | LM2575IKTT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 4 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PSSO5 |
| 封装： | TO-263, PLASTIC, 5 PIN |
| 文件页数： | 8/12页 |
| 文件大小： | 195K |
| 代理商： | LM2575IKTT |
www.ti.com
Electrical Characteristics
LM2575
1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR
SLVS569D – JANUARY 2005 – REVISED JULY 2005
I
LOAD = 200 mA, VIN = 12 V for 3.3-V, 5-V, and adjustable versions, VIN = 25 V for 12-V version, VIN = 30 V for 15-V version
(unless otherwise noted) (see Figure 2)
PARAMETER
TEST CONDITIONS
TJ
MIN
TYP
MAX
UNIT
VIN = 12 V, ILOAD = 0.2 A
25
°C
3.234
3.3
3.366
LM2575-33
25
°C
3.168
3.3
3.432
4.75 V
≤ V
IN ≤ 40 V,
0.2 A
≤ I
LOAD ≤ 1 A
Full range
3.135
3.465
VIN = 12 V, ILOAD = 0.2 A
25
°C
4.9
5
5.1
LM2575-05
25
°C
4.8
5
5.2
8 V
≤ V
IN ≤ 40 V,
0.2 A
≤ I
LOAD ≤ 1 A
Full range
4.75
5.25
VOUT
Output voltage
V
VIN = 25 V, ILOAD = 0.2 A
25
°C
11.76
12
12.24
LM2575-12
25
°C
11.52
12
12.48
15 V
≤ V
IN ≤ 40 V,
0.2 A
≤ I
LOAD ≤ 1 A
Full range
11.4
12.6
VIN = 30 V, ILOAD = 0.2 A
25
°C
14.7
15
15.3
LM2575-15
25
°C
14.4
15
15.6
18 V
≤ V
IN ≤ 40 V,
0.2 A
≤ I
LOAD ≤ 1 A
Full range
14.25
15
15.75
VIN = 12 V, VOUT = 5 V,
25
°C
1.217
1.23
1.243
ILOAD = 0.2 A
Feedback voltage
LM2575-ADJ
V
25
°C
1.193
1.23
1.267
8 V
≤ V
IN ≤ 40 V, VOUT = 5 V,
0.2 A
≤ I
LOAD ≤ 1 A
Full range
1.18
1.28
LM2575-33
VIN = 12 V, ILOAD = 1 A
75
LM2575-05
VIN = 12 V, ILOAD = 1 A
77
LM2575-12
VIN = 15 V, ILOAD = 1 A
88
η
Efficiency
25
°C
%
LM2575-15
VIN = 18 V, ILOAD = 1 A
88
VIN = 12 V, VOUT = 5 V,
LM2575-ADJ
77
ILOAD = 1 A
25
°C
50
100
IIB
Feedback bias current
VOUT = 5 V (ADJ version only)
nA
Full range
500
25
°C
47
52
58
fo
Oscillator frequency
(1)
kHz
Full range
42
63
25
°C
0.9
1.2
VSAT
Saturation voltage
IOUT = 1 A(2)
V
Full range
1.4
Maximum duty cycle
(3)
25
°C
93
98
%
25
°C
1.7
2.8
3.6
ICL
Peak current
(1) (2)
A
Full range
1.3
4
VIN = 40(4), Output = 0 V
2
IL
Output leakage current
25
°C
mA
VIN = 40(4), Output = –1 V
7.5
30
IQ
Quiescent current
(4)
25
°C
5
10
mA
ISTBY
Standby quiescent current
OFF (ON/OFF pin = 5 V)
25
°C
50
200
A
25
°C
2.2
1.4
VIH
OFF (VOUT = 0 V)
Full range
2.4
ON/OFF logic input level
V
25
°C
1.2
1
VIL
ON (VOUT = nominal voltage)
Full range
0.8
IIH
OFF (ON/OFF pin = 5 V)
12
30
ON/OFF input current
25
°C
A
IIL
OFF (ON/OFF pin = 0 V)
0
10
(1)
In the event of an output short or an overload condition, self-protection features lower the oscillator frequency to
18 kHz and the
minimum duty cycle from 5% to
2%. The resulting output voltage drops to 40% of its nominal value, causing the average power
dissipated by the IC to lower.
(2)
Output is not connected to diode, inductor, or capacitor. Output is sourcing current.
(3)
Feedback is disconnected from output and connected to 0 V.
(4)
To force the output transistor off, FEEDBACK is disconnected from output and connected to 12 V for the adjustable, 3.3-V, and 5-V
versions; and 25 V for the 12-V and 15-V versions.
5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM2575IKTTR | 制造商:TI 制造商全称:Texas Instruments 功能描述:1-A SIMPLE STEP DOWN SWITCHING VOLTAGE REGULATOR |
| LM2575IN | 功能描述:直流/直流开关调节器 1A Simple Step-Down Switching Volt Reg RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| LM2575INE4 | 功能描述:直流/直流开关调节器 1A Simple Step-Down Switching Volt Reg RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| LM2575M-12 | 制造商:OC White Company 功能描述:Conv DC-DC Single Step Down 4V to 40V 24-Pin SOIC W |
| LM2575M-12/NOPB | 功能描述:IC REG BUCK 12V 1A 24-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:SIMPLE SWITCHER® 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:3.3V 输入电压:4.5 V ~ 24 V PWM 型:- 频率 - 开关:- 电流 - 输出:125mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 包装:Digi-Reel® 供应商设备封装:SOT-6 其它名称:MAX1836EUT33#TG16DKR |
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