Rev.1.0
HIGH OPERATING VOLTAGE
CMOS VOLTAGE REGULATOR
S-812C Series
The S-812C series is a family of high-voltage positive
regulators developed using CMOS technology.
The
maximum operating voltage of 16V makes the S-812C
series best in high-voltage applications. Not only current
consumption is small but also power-off function is
included, the regulator is also suitable in constructing low-
power portable devices. Combination of power-off function
and short-current protection can be selected.
Features
•
Low current consumption
•
Power source for battery-powered devices
Operating current: Typ. 1.0
µA,
Max. 1.8
µA
(3.0 V)
•
Power source for personal communication
•
Output voltage: 2.0 to 6.0 V (0.1 V step)
devices
•
Output voltage accuracy:
±2.0%
•
Power source for home electric/electronic
•
Output current:
appliances
Note1
50mA capable (3.0 V output product, V
IN
=5 V)
Note1
75mA capable (5.0 V output product, V
IN
=7 V)
•
Dropout voltage
Typ. 120 mV (V
OUT
= 5.0 V, I
OUT
= 10 mA)
•
Power-off function: Polarity for power-off switch or removal of the power-off function can be selected.
•
Short-circuit protection: Product with/without short-circuit protection is available.
Short-circuited current : 40 mA typ. for products with protection
•
Packages: SOT-23-5 (Package drawing code : MP005-A)
SOT-89-5 (Package drawing code : UP003-A)
SOT-89-3 (Package drawing code : UP005-A)
TO-92
(Package drawing code : YF003-A)
Note1 Power dissipation of the package should be taken into account when the output current is large.
Applications
Block Diagram
(1) Product without power-off function
VIN
(1)
VOUT
(2) Product with power-off function
VIN
(1)
VOUT
(2)
Short-circuit
protection
(2)
Short-circuit
protection
ON/OFF
Reference
voltage
Reference
voltage
VSS
(1) : Parasitic diode
(2) : In case of a product with short-circuit protection
VSS
(1) : Parasitic diode
(2) : In case of a product with short-circuit protection
Figure 1 Block Diagram
Seiko Instruments Inc.
1
SII [ SEIKO INSTRUMENTS INC ]
