S-L2980A30MC-C6PTF Seiko Instruments, S-L2980A30MC-C6PTF Datasheet - Page 11

• Manufacturer Part Number: S-L2980A30MC-C6PTF
• Description: Low Dropout (LDO) Regulators 3.0V 90uA 2.0%
• Manufacturer: Seiko Instruments

Specifications of S-L2980A30MC-C6PTF

• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 10 V
• Output Voltage: 3 V
• Output Type: Fixed
• Dropout Voltage (max): 0.15 V at 50 mA
• Output Current: 150 mA
• Line Regulation: 0.2 % / V
• Load Regulation: 40 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Power Dissipation: 0.3 W
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOT-23-5
• Minimum Operating Temperature: - 40 C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Rev.2.2
Operation
1. Basic operation
2. Output transistor
Figure 11 shows the block diagram of the S-L2980 Series.
The error amplifier compares the reference voltage (V
resistance-divided by the feedback resistors R
voltage, necessary to ensure certain output voltage free of any fluctuations of input voltage and
temperature.
The S-L2980 Series uses a low on-resistance P-channel MOS FET as the output transistor.
Be sure that V
inverse current flowing from VOUT pin through a parasitic diode to VIN pin.
_00
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
OUT
does not exceed V
Current source
Reference voltage circuit
VSS
*1. Parasitic diode
VIN
V
ref
IN
+0.3 V to prevent the voltage regulator from being broken due to
Seiko Instruments Inc.
–
+
Error
amplifier
s
Figure 11
and R
f
ref
. It supplies the output transistor with the gate
) with the V
R
R
f
s
V
fb
fb
*1
, which is the output voltage
VOUT
S-L2980 Series
11