S-8533A15AFT-TB-G Seiko Instruments, S-8533A15AFT-TB-G Datasheet - Page 11

• Manufacturer Part Number: S-8533A15AFT-TB-G
• Description: IC CTRL PWM SYNC SD 1.5V 8-TSSOP
• Manufacturer: Seiko Instruments
• Type: Step-Down (Buck)r

Specifications of S-8533A15AFT-TB-G

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.5V
• Frequency - Switching: 300kHz
• Voltage - Input: 2.7 ~ 16 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP
• Power - Output: 300mW
• Output Voltage: + 1.3 V to + 6 V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Rev.3.0
STEP-DOWN, SYNCHRONOUS PWM CONTROL SWITCHING REGULATOR CONTROLLER
Though the conditions mentioned above are required to prevent back-flow current, they are guidelines. Check the
validity by measuring the prototype or the actual device.
_00
−109 mA
109 mA
I
OUT
0 mA
I
L
Coil current under no load
V
IN
Figure 10 Example for No Back-Flow Current
C
IN
ΔI
Back-flow
current
L
+
I
I
Figure 9 Back-Flow Current
L
L
max.
min.
VIN
Seiko Instruments Inc.
Back-flow current
VSS
PDRV
NDRV
218 mA
109 mA
I
OUT
Coil
current I
0 mA
L
I
L
Coil current when 109 mA
flows as a load
L
+
V
OUT
Back-flow current = 0 mA
ΔI
L
I
I
L
L
max.
min.
S-8533 Series
11