S-1323B30NB-N8P-TF Seiko Instruments, S-1323B30NB-N8P-TF Datasheet - Page 10

• Manufacturer Part Number: S-1323B30NB-N8P-TF
• Description: Low Dropout (LDO) Regulators 3.0 V 1% 70uV
• Manufacturer: Seiko Instruments

Specifications of S-1323B30NB-N8P-TF

• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 6.5 V
• Output Voltage: 3 V
• Output Type: Fixed
• Dropout Voltage (max): 0.65 V at 150 mA
• Output Current: 150 mA
• Line Regulation: 0.1 % / V
• Load Regulation: 40 mV
• Voltage Regulation Accuracy: 1 %
• Maximum Power Dissipation: 0.4 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SC-82AB
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

10
HIGH RIPPLE-REJECTION SMALL PACKAGE CMOS VOLTAGE REGULATOR
S-1323 Series
Operation
2. Output transistor
1. Basic operation
Figure 10 shows the block diagram of the S-1323 Series.
The error amplifier compares the reference voltage (V
divided by feedback resistors R
to ensure a certain output voltage free of any fluctuations of input voltage and temperature.
The S-1323 Series uses a low on-resistance P-channel MOS FET as the output transistor.
Be sure that V
to inverse current flowing from VOUT pin through a parasitic diode to VIN pin.
OUT
does not exceed V
*1. Parasitic diode
VSS
VIN
Current
supply
Reference voltage
V
ref
s
circuit
and R
IN
f
. It supplies the output transistor with the gate voltage necessary
+ 0.3 V to prevent the voltage regulator from being damaged due
− − − −
+ + + +
amplifier
Seiko Instruments Inc.
Error
Figure 10
ref
) with V
R
R
s
f
V
fb
fb
*1
, which is the output voltage resistance-
VOUT
Rev.2.2
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