S-8550AA-M5T1G Seiko Instruments, S-8550AA-M5T1G Datasheet - Page 18

• Manufacturer Part Number: S-8550AA-M5T1G
• Description: IC, SYNC STEP-DOWN REGULATOR, SOT-23-5
• Manufacturer: Seiko Instruments

Specifications of S-8550AA-M5T1G

• Primary Input Voltage: 5.5V
• No. Of Outputs: 1
• Output Voltage: 4V
• Output Current: 600mA
• No. Of Pins: 5
• Operating Temperature Range: -40°C To +85°C
• Operating Temperature Min: 85°C
• Input Voltage: 5.5 V
• Duty Cycle (max): 100 %
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-23-5
• Minimum Operating Temperature: - 40 C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18
STEP-DOWN, BUILT-IN FET, SYNCHRONOUS RECTIFICATION, PWM CONTROL SWITCHING REGULATORS
S-8550/8551 Series
3. Examples of Transient Response Characteristics
2. 7 ON/OFF pin input voltage“H” (V
2. 9 UVLO detection voltage (V
1.80
1.75
1.70
1.65
1.60
1.55
1.50
1.45
1.40
3. 1 Powering ON (V
3. 2 Shutdown pin response (V
−1
−1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
(1) I
4
3
2
1
0
(1) I
4
3
2
1
0
(Unless otherwise specified, the used parts are ones shown in
−0.2
−0.2
−40
−40
OUT
OUT
−25
−25
0 0.2 0.4
0 0.2 0.4
= 1 mA
= 1 mA
I
I
V
V
V
V
L
L
IN
ON/OFF
OUT
OUT
0
0
0.6
0.6
t [ms]
t [ms]
Ta [°C]
Ta [°C]
OUT
0.8
0.8
25
25
= 1.8 V, V
1.0
1.0
UVLO
V
SH
V
IN
) vs. Temperature (Ta)
50
50
V
OUT
IN
) vs. Temperature (Ta)
1.2 1.4
1.2 1.4
= 2.0 V
IN
= 5.5 V
= 3.6 V
= 1.8 V, V
IN
= 0 V → 3.6 V, Ta = 25°C)
75 85
75 85
1.6
1.6
Seiko Instruments Inc.
0.6
0.4
0.2
0
−0.2
IN
0.6
0.4
0.2
0
−0.2
= 3.6 V, V
External Parts When Measuring Electrical Characteristics.)
2. 8 ON/OFF pin input voltage“L” (V
2. 10 FB voltage (V
ON/OFF
(2) I
(2) I
612
588
608
604
600
596
592
0.9
0.8
0.7
0.6
0.5
0.4
0.3
−1
−1
4
3
2
1
0
4
3
2
1
0
= 0 V → 3.6 V, Ta = 25°C)
OUT
OUT
−0.2
−0.2
−40
−40
= 600 mA
= 600 mA
−25
−25
0 0.2 0.4
0 0.2 0.4
I
I
V
V
V
V
L
L
IN
OUT
ON/OFF
OUT
FB
) vs. Temperature (Ta)
0
0
0.6
0.6
Ta [°C]
Ta [°C]
t [ms]
t [ms]
25
25
0.8
0.8
SL
) vs. Temperature (Ta)
V
1.0
1.0
V
V
V
IN
IN
50
50
V
V
IN
IN
= 5.5 V
= 5.5 V
IN
IN
1.2 1.4
1.2 1.4
= 3.6 V
= 3.6 V
= 2.0 V
= 2.0 V
Rev.4.0
75 85
75 85
1.6
1.6
1.5
1.0
0.5
0
−0.5
1.5
1.0
0.5
0
−0.5
_00