SM625 datasheet(3/4 Pages) MICRO-ELECTRONICS

tên linh kiện	SM625

Giải thích chi tiết về linh kiện	SWITCHING REGULATOR POWER OUTPUT STAGES

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nhà sản xuất	MICRO-ELECTRONICS [Micro Electronics]

Trang chủ	http://www.microelectr.com.hk

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SM625/SM626/SM627

4/90 Rev 1.1 2/94

LINFINITY Microelectronics Inc.

Copyright

11861 Western Avenue

∞

∞ Garden Grove, CA 92841

3

(714) 898-8121

∞

∞ FAX: (714) 893-2570

Current Delay Time

Current Rise Time

Voltage Rise Time

Voltage Storage Time

Voltage Fall Time

Current Fall Time

Efficiency (Note 5)

Test Conditions

Parameter

Units

ELECTRICAL SPECIFICATIONS (continued)

Note 4. In switching an inductive load, the current will lead the voltage on turn-on and lag the voltage on turn-off (see Figure 2). Therefore, Voltage

Delay Time (t

DV) ≅ tdi + tri and Current Storage Time (tsi) ≅ tsv + tfv .

Note 5. The efficiency is a measure of internal power losses and is equal to Output Power divided by Input Power. The switching speed circuit of Figure

1, in which the efficiency measured, is represenative of typical operating conditions for the SM600 series switching regulators.

Dynamic Characteristics (See Figures 1 & 2) (Notes 4 & 5)

AC TEST CIRCUIT AND SWITCHING TIME WAVEFORMS (Note 6)

FIGURE 1 - SM625/626/627 SWITCHING SPEED CIRCUIT

FIGURE 2 - SM625/626/627 SWITCHING WAVEFORMS

SM625

SM626

SM627

ns

%

60

150

60

175

300

35

65

40

700

70

175

85

SG625/626/627

Min.

Typ. Max.

FIGURE 4 - NEGATIVE OUTPUT DOWN/UP (BUCK-BOOST) CONVERTER

FIGURE 3 - STEP DOWN (BUCK) CONVERTER

APPLICATION CIRCUITS

SM62X

Số phần tương tự - SM625

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Số phần tương tự - SM625

Mô tả tương tự - SM625

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