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S8540 Datasheet(PDF) 30 Page - Seiko Instruments Inc

Part # S8540
Description  STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
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Manufacturer  SII [Seiko Instruments Inc]
Direct Link  http://www.sii.co.jp
Logo SII - Seiko Instruments Inc

S8540 Datasheet(HTML) 30 Page - Seiko Instruments Inc

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STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
S-8540/8541 Series
Rev.4.0_01
30
1. Efficiency Characteristics : Efficiency (
η) − Output current (IOUT)
1. 1 S-8540A33FN
1. 2 S-8541A33FN
50
60
70
80
90
100
1
10
100
1000
IOUT (mA)
VIN
=4.0 V
(3.3 V, 600 kHz, PWM control)
5.0 V
7.2 V
50
60
70
80
90
100
5.0 V
7.2 V
(3.3 V, 600 kHz, PWM/PFM control)
1
10
100
1000
IOUT (mA)
VIN
=4.0 V
1. 3 S-8540A25FN
1. 4 S-8541A25FN
50
60
70
80
90
100
1
10
100
1000
(2.5 V, 600 kHz, PWM control)
3.6 V
5.0 V
IOUT (mA)
VIN
=3.0 V
50
60
70
80
90
100
1
10
100
1000
3.6 V
5.0 V
(2.5 V, 600 kHz, PWM/PFMcontrol)
IOUT (mA)
VIN
=3.0 V
1. 5 S-8540A18FN
1. 6 S-8541A18FN
50
60
70
80
90
100
1
10
100
1000
(1.8 V, 600 kHz, PWM control)
3.6 V
5.0 V
IOUT (mA)
VIN
=2.5 V
50
60
70
80
90
100
1
10
100
1000
3.6 V 5.0 V
(1.8 V, 600 kHz, PWM/PFM control)
IOUT (mA)
VIN
=2.5 V


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