參數(shù)資料
型號： LM2575BN
廠商： MICREL INC
元件分類： 穩(wěn)壓器
英文描述： Advanced LinCMOS(TM) Precision Chopper-Stabilized Operational Amplifier 8-PDIP
中文描述： 3.2 A SWITCHING REGULATOR, 63 kHz SWITCHING FREQ-MAX, PDIP16
封裝： PLASTIC, DIP-16
文件頁數(shù)： 5/12頁
文件大?。?/td> 195K
代理商： LM2575BN
www.ti.com
Electrical Characteristics
I
LOAD
= 200 mA, V
IN
= 12 V for 3.3-V, 5-V, and adjustable versions, V
IN
= 25 V for 12-V version, V
IN
= 30 V for 15-V version
(unless otherwise noted) (see
Figure 2
)
LM2575
1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATOR
SLVS569D–JANUARY 2005–REVISED JULY 2005
PARAMETER
TEST CONDITIONS
V
IN
= 12 V, I
LOAD
= 0.2 A
T
J
MIN
3.234
3.168
3.135
4.9
4.8
4.75
11.76
11.52
11.4
14.7
14.4
14.25
TYP
3.3
3.3
MAX
3.366
3.432
3.465
5.1
5.2
5.25
12.24
12.48
12.6
15.3
15.6
15.75
UNIT
25
°
C
25
°
C
LM2575-33
4.75 V
≤
V
IN
≤
40 V,
0.2 A
≤
I
LOAD
≤
1 A
Full range
25
°
C
25
°
C
Full range
25
°
C
25
°
C
Full range
25
°
C
25
°
C
Full range
V
IN
= 12 V, I
LOAD
= 0.2 A
5
5
LM2575-05
8 V
≤
V
IN
≤
40 V,
0.2 A
≤
I
LOAD
≤
1 A
V
OUT
Output voltage
V
V
IN
= 25 V, I
LOAD
= 0.2 A
12
12
LM2575-12
15 V
≤
V
IN
≤
40 V,
0.2 A
≤
I
LOAD
≤
1 A
V
IN
= 30 V, I
LOAD
= 0.2 A
15
15
15
LM2575-15
18 V
≤
V
IN
≤
40 V,
0.2 A
≤
I
LOAD
≤
1 A
V
IN
= 12 V, V
OUT
= 5 V,
I
LOAD
= 0.2 A
25
°
C
1.217
1.23
1.243
Feedback voltage
LM2575-ADJ
V
25
°
C
1.193
1.18
1.23
1.267
1.28
8 V
≤
V
IN
≤
40 V, V
OUT
= 5 V,
0.2 A
≤
I
LOAD
≤
1 A
Full range
LM2575-33
LM2575-05
LM2575-12
LM2575-15
V
IN
= 12 V, I
LOAD
= 1 A
V
IN
= 12 V, I
LOAD
= 1 A
V
IN
= 15 V, I
LOAD
= 1 A
V
IN
= 18 V, I
LOAD
= 1 A
V
IN
= 12 V, V
OUT
= 5 V,
I
LOAD
= 1 A
75
77
88
88
η
Efficiency
25
°
C
%
LM2575-ADJ
77
25
°
C
50
100
500
58
63
1.2
1.4
I
IB
Feedback bias current
V
OUT
= 5 V (ADJ version only)
nA
Full range
25
°
C
Full range
25
°
C
Full range
25
°
C
25
°
C
Full range
47
42
52
f
o
Oscillator frequency
(1)
kHz
0.9
V
SAT
Saturation voltage
I
OUT
= 1 A
(2)
V
Maximum duty cycle
(3)
93
1.7
1.3
98
2.8
%
3.6
I
CL
Peak current
(1)(2)
A
4
2
V
IN
= 40
(4)
, Output = 0 V
V
IN
= 40
(4)
, Output = –1 V
(4)
I
L
Output leakage current
25
°
C
mA
7.5
30
10
I
Q
I
STBY
Quiescent current
Standby quiescent current
25
°
C
25
°
C
25
°
C
5
mA
μ
A
OFF (ON/OFF pin = 5 V)
50
1.4
200
2.2
2.4
V
IH
OFF (V
OUT
= 0 V)
Full range
25
°
C
Full range
ON/OFF logic input level
V
1.2
1
V
IL
ON (V
OUT
= nominal voltage)
0.8
30
10
I
IH
I
IL
OFF (ON/OFF pin = 5 V)
OFF (ON/OFF pin = 0 V)
12
0
ON/OFF input current
25
°
C
μ
A
(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.
Output is not connected to diode, inductor, or capacitor. Output is sourcing current.
Feedback is disconnected from output and connected to 0 V.
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.
(2)
(3)
(4)
5
相關(guān)PDF資料
PDF描述
LM2575-5.0BU Advanced LinCMOS(TM) Precision Chopper-Stabilized Operational Amplifier 14-PDIP
LM2575HV SIMPLE SWITCHER 1A Step-Down Voltage Regulator
LM2575-12 52kHz Simple 1A Buck Regulator
LM2575T Advanced LinCMOS(TM) Precision Chopper-Stabilized Operational Amplifier 8-PDIP
LM2575T-12 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
LM2575BT 功能描述:IC REG BUCK ADJ 1A TO220-5 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
LM2575BU 功能描述:IC REG BUCK ADJ 1A TO263-5 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
LM2575BU TR 功能描述:IC REG BUCK ADJ 1A TO263-5 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
LM2575BWM 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1A Step-Down SMPS Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
LM2575BWM TR 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1A Step-Down SMPS Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*