Datasheet > LM2596T-15

LM2596T-15

更新时间： 2022-11-13 19:13:00

品牌	Logo	应用领域
其他 - ETC		稳压器开关
页数	文件大小	规格书
11页	693K
描述
3.0A, 150Khz, Step-Down Switching Regulator

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LM2596T-15 数据手册

LM2596

3.0A, 15V, Step-Down Switching Regulator

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.)

100

127

110

150

173

1.4

1.5

1.16

100

4.5

3.6

3.4

6.9

7.5

250

0.6

1.3

2.0

V LOGIC = 2.5V (Regulator OFF)

V LOGIC = 0.5V (Regulator ON)

0.02

5.0

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 THIGH = +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.

HTC

Oct 2004 - Rev 0

1 2 345 6 7...11

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