s-8541c32fn-iirt2g Seiko Instruments Inc., s-8541c32fn-iirt2g Datasheet - Page 25

• Manufacturer Part Number: s-8541c32fn-iirt2g
• Description: Step-down, 600 Khz Pwm Control Or Pwm/pfm Switchable Switching Regulator Controller
• Manufacturer: Seiko Instruments Inc.

(0.5 V/div)
Rev.3.2
(1 V/div)
(1 V/div)
(1 V/div)
(1 V/div)
(1 V/div)
2. 2 Shutdown pin response (V
V
V
V
V
V
ON/OFF
ON /OF F
ON/OFF
V
(1) S-8540A33FN (V
(3) S-8540C33FN (V
(5) S-8540A18FN (V
OUT
OUT
OUT
1.5 V
STEP-DOWN, 600 kHz PWM CONTROL or PWM/PFM SWITCHABLE SWITCHING REGULATOR CONTROLLER
4 V
0 V
3 V
4 V
0 V
0 V
0 V
0 V
0 V
4 V
3 V
_00
IN
IN
IN
: 4.95V)
: 4.95 V)
t (4 ms/div)
: 4.95 V)
t (4 ms/div)
t (4 ms/div)
ON/OFF
: 0 → 2.5 V I
Seiko Instruments Inc.
(0.5 V/div)
(1 V/div)
(1 V/div)
(1 V/div)
(1 V/div)
(1 V/div)
V
V
V
(2) S-8540A33FN (V
(4) S-8540C33FN (V
(6) S-8540A18FN (V
OUT
V
V
V
ON /OF F
ON/OFF
ON/OF F
OUT
OUT
OUT
1.5 V
: no Load)
0 V
4 V
0 V
4 V
0 V
3 V
0 V
0 V
3 V
4 V
0 V
IN
IN
IN
: 10V)
: 10 V)
: 10 V)
t (4 ms/div)
t (4 ms/div)
t (4 ms/div)
S-8540/8541 Series
25