S-8521E18MC-BLD-T2 Seiko Instruments, S-8521E18MC-BLD-T2 Datasheet - Page 4

• Manufacturer Part Number: S-8521E18MC-BLD-T2
• Description: DC/DC Switching Regulators 1.8V Step-Dn PWM/PFM
• Manufacturer: Seiko Instruments

Specifications of S-8521E18MC-BLD-T2

• Output Voltage: 1.8 V
• Mounting Style: SMD/SMT
• Package / Case: SOT-23-5
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PWM Control & PWM/PFM Control Step-Down Switching Regulator-Controllers
S-8520/8521 Series
4
Pin Assignment:
Absolute Maximum Ratings:
Caution The absolute maximum ratings are rated values exceeding which the product
VIN pin voltage
VOUT pin voltage
ON/OFF pin voltage
EXT pin voltage
EXT pin current
Power dissipation
Operating temperature range
Storage temperature range
*1. V
5
1
SOT-23-5
Top view
SS
Figure 2
+12 V for S-8520/21A/C/E; V
could suffer physical damage. These values must therefore not be exceeded under
any conditions.
2
Item
4
3
Seiko Instruments Inc.
SS
Pin No.
V
+18 V for S-8520/21B/D/F
Symbol
ON/OFF
V
1
2
3
4
5
V
T
T
V
I
P
EXT
IN
OUT
OPR
STG
EXT
D
*1
*1
Pin Name
ON/OFF
VOUT
VSS
EXT
VIN
V
V
V
SS
SS
SS
(Ta = 25
−0.3 to V
−0.3 to V
−0.3 to V
Power-off pin
H: Normal operation (Step-down operation)
L: Step-down operation stopped (All circuits
GND pin
Output voltage monitoring pin
Connection pin for external transistor
IC power supply pin
V
SS
deactivated)
−40 to +125
−0.3 to V
−40 to +85
Ratings
ο
±50
250
SS
SS
SS
C unless otherwise specified)
+12 or V
+12 or V
+12 or V
IN
+0.3
Function
SS
SS
SS
+18
+18
+18
mW
Unit
mA
ο
ο
V
V
V
V
C
C
Rev.7.4
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