S-812C25AUA-C2FT2G Seiko Instruments, S-812C25AUA-C2FT2G Datasheet - Page 17

• Manufacturer Part Number: S-812C25AUA-C2FT2G
• Description: IC REG LDO 30MA 2.5V SOT-89-3
• Manufacturer: Seiko Instruments

Specifications of S-812C25AUA-C2FT2G

• Regulator Topology: Positive Fixed
• Voltage - Output: 2.5V
• Voltage - Input: Up to 16V
• Voltage - Dropout (typical): 0.32V @ 10mA
• Number Of Regulators: 1
• Current - Output: 30mA (Min)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SC-62, SOT-89, TO-243 (3 Leads + Tab)
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 18 V
• Output Voltage: 2.5 V
• Output Type: Fixed
• Dropout Voltage (max): 0.95 V
• Output Current: 75 mA
• Line Regulation: 20 mV
• Load Regulation: 30 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Power Dissipation: 1000 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 728-1017-2

Rev.5.0
Operation
1. Basic Operation
2. Output Transistor
Figure 16 shows the block diagram of the S-812C Series.
The error amplifier compares the reference voltage (V
divided by feedback resistors R
output voltage which is not influenced by the input voltage and temperature change, to the output
transistor.
In the S-812C Series, a low on-resistance P-channel MOS FET is used as the output transistor.
Be sure that V
to inverse current which flows, because of a parasitic diode between the VIN and VOUT pin.
_00
Current supply
OUT
VSS
VIN
*1. Parasitic diode
does not exceed V
HIGH OPERATING VOLTAGE CMOS VOLTAGE REGULATOR
V
Reference
ref
voltage
circuit
s
and R
Error amplifier
IN
Seiko Instruments Inc.
+ 0.3 V to prevent the voltage regulator from being damaged due
f
. It supplies the gate voltage necessary to maintain the constant
+
−
Figure 16
ref
) with V
fb
R
R
, which is the output voltage resistance-
f
S
*1
VOUT
S-812C Series
17