S-8541 Seiko Instruments, S-8541 Datasheet - Page 27

• Manufacturer Part Number: S-8541
• Description: (S-8540 / S-8541) 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
• Manufacturer: Seiko Instruments

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(0.1 V/div)
(0.1 V/div)
(0.1 V/div)
Rev.3.2
500 mA
V
0.1 mA
I
2. 4 Load Variation (V
500 mA
500 mA
OUT
0.1 mA
0.1 mA
V
OUT
I
I
(1) S-8540A33FN (V
(3) S-8540C33FN(V
(5) S-8540A18FN (V
V
OU T
OUT
OUT
OU T
STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
_00
IN
IN
IN
t (0.2 ms/div)
: 4.95 V)
t (0.2 ms/div)
t (0.2 ms/div)
: 4.95 V)
: 2.7 V)
IN
: 2.7 V or 5.0 V or 7.5 V, I
Seiko Instruments Inc.
(0.1 V/div)
(0.1 V/div)
(0.1 V/div)
OUT
500 mA
0.1 mA
V
I
500 mA
500 mA
0.1 mA
V
OU T
0.1 mA
V
I
OUT
I
OU T
: 0.1→500 mA, 500→0.1 mA)
OUT
OUT
OUT
(2) S-8540A33FN (V
(4) S-8540C33FN(V
(6) S-8540A18FN (V
t (4 ms/div)
t (8 ms/div)
t (4 ms/div)
IN
IN
IN
: 4.95 V)
: 4.95 V)
: 2.7 V)
S-8540/8541 Series
27