L2800(Old_V) データシートの表示（PDF） - Unisonic Technologies

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L2800
(Rev.:Old_V)

SWITCHING REGULATOR CONTROLLER(LOW VOLTAGE)

Unisonic Technologies 

UTC L2800 LINEAR INTEGRATED CIRCUIT

BR/CTL Pin Current vs. Output Source Current

-50

-40

Vcc=2V

VOUT=0.9V

-30

Ta=+25℃

-20

BR/CTL Pin Current vs. BR/CTL Pin Voltage

500

Vcc=2V

Ta=+25℃

400

300

200

-10

0

0

-0.4

-0.8

-1.2

-1.6

-2.0

BR/CTL pin Current ,I BR (mA)

100

0

0

-0.4

-0.8

-1.2

-1.6

-2.0

BR/CTL pin current ,I BR (mA)

BR/CTL Pin Current vs. Supply Current

5.0

Vcc=2V

Ta=+25℃

4.0

3.0

2.0

1.0

0

0

-20

-40

-60

-80

-100

BR/CTL pin current ,I BR (μA)

1M

500k

200k

100k

50k

20k

10k

5k

2k

Timing Resistor vs. Oscillation Frequency

CT=100pF

Vcc=2V

Ta=+25℃

CT=1000pF

CT=10000pF

1k

2k

5k

10k

20k

Timing resistor ,R T (Ω)

Supply Voltage vs. Frequency Variation Ratio

10

CT=270pF

Ta=+25℃

5

RT=3.0kΩ

Ambient Temperature vs. Frequency Variation Ratio

10

Vcc=2V

CT=270pF

5

RT=3.0kΩ

0

0

-5

-5

-10

-10

-15

0 2 4 6 8 10 12 14 16

Supply voltage ,Vcc (V)

-15

-40 -20

0

20 40 60 80 100

Ambient temperature ,Ta (℃)

UTC

UNISONIC TECHNOLOGIES CO., LTD. 6

QW-R121-010,A

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