參數(shù)資料
型號(hào): LM2596R
廠商: Electronic Theatre Controls, Inc.
英文描述: 3.0A, 150Khz, Step-Down Switching Regulator
中文描述: 3.0A的,設(shè)有150kHz,降壓型開關(guān)穩(wěn)壓器
文件頁數(shù): 4/11頁
文件大?。?/td> 699K
代理商: LM2596R
3.0A, 15V, Step-Down Switching Regulator
LM2596
HTC
4
ELECTRICAL CHARACTERISTICS / Device Parameters
(Unless otherwise specified, Vin = 12 V for the 3.3 V, 5.0 V, and Adjustable version, Vin = 25 V for the 12
V version, and Vin = 30 V for the 15 V version. ILoad = 500 mA. For typical values Tj = 25°C, for min/max
values Tj is the operating junction temperature range that applies [Note 2], unless otherwise noted.)
1. External components such as the catch diode, inductor, input and output capacitors can affect switching
regulator system performance.
When the LM2596 is used as shown in the Figure 1 test circuit, system performance will be as shown in system
parameters section .
2. Tested junction temperature range for the LM2596 : T
LOW
= –0°C T
HIGH
= +125°C
3. The oscillator frequency reduces to approximately 18 kHz in the event of an output short or an overload which
causes the regulated output voltage to drop approximately 40% from the nominal output voltage. This self
protection feature lowers the average dissipation of the IC by lowering the minimum duty cycle from 5% down to
approximately 2%.
4. Output (Pin 2) sourcing current. No diode, inductor or capacitor connected to output pin.
5. Feedback (Pin 4) removed from output and connected to 0 V.
6. Feedback (Pin 4) removed from output and connected to +12 V for the Adjustable, 3.3 V, and 5.0V ersions, and
+25 V for the 12 V and15 V versions, to force the output transistor “off”.
7. Vin = 40 V.
2
2
10
50
100
0
150
173
173
127
110
1.16
1.5
4.5
3.6
3.4
100
-
1.4
0
0
0
0
0
0
6.9
7.5
-
50
30
2
-
10
5
250
0.6
-
2.0
-
-
1.3
0.6
1.3
5
15
5.0
2.0
0.02
V
LOGIC
= 2.5V (Regulator OFF)
V
LOGIC
= 0.5V (Regulator ON)
Oct 2004 - Rev 0
相關(guān)PDF資料
PDF描述
LM2597N-12 SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator, with Features
LM2597HVN-12 SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator, with Features
LM2597HVN-3.3 SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator, with Features
LM2597HVN-5.0 SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator, with Features
LM2597HVN-ADJ SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator, with Features
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM2596S 制造商:Texas Instruments 功能描述:
LM2596S-12 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM2596S12 制造商:Texas Instruments 功能描述:IC SWITCHING REG 3A 12V SMD 2596
LM2596S-12/NOPB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 150 KHZ 3A STEP-DOWN VLTG REG RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
LM2596S-3.3 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT