LT3570(RevA) 查看數據表（PDF） - Linear Technology

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产品描述 (功能)

生产厂家

LT3570
(Rev.:RevA)

1.5A Buck Converter, 1.5A Boost Converter and LDO Controller

Linear Technology 

LT3570

TYPICAL PERFORMANCE CHARACTERISTICS

SW2 Current Limit vs Duty Cycle

3.0

2.5

2.0

1.5

1.0

0.5

0

0

10 20

TJ = 125°C

TJ = 25°C

TJ = –40°C

30 40 50 60 70 80 90 100

DUTY CYCLE (%)

3570 G12

BOOST Pin Current

vs Switch Current

30

25

TJ = 25°C

20

TJ = –40°C

15

TJ = 125°C

10

5

0

0

0.2 0.4 0.6 0.8 1.0

CURRENT (A)

3570 G14

SW2 Saturation Voltage

vs SW2 Current

350

300

250

200

150

100

50

TJ = 125°C

TJ = 25°C

TJ = –40°C

0

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

CURRENT (A)

3570 G13

NPN_DRV Output Current vs VIN3

18

16

TJ = 25°C

14

TJ = 125°C

12

TJ = –40°C

10

8

6

4

2

0

1 5 10 15 20 25 30 35 40

VOLTAGE (V)

3570 G15

3570fa

6

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