S-L2980A50MC-TF-G Seiko Instruments, S-L2980A50MC-TF-G Datasheet - Page 11

• Manufacturer Part Number: S-L2980A50MC-TF-G
• Description: IC REG LDO 150MA 5.0V SOT23-5
• Manufacturer: Seiko Instruments

Specifications of S-L2980A50MC-TF-G

• Regulator Topology: Positive Fixed
• Voltage - Output: 5V
• Voltage - Input: Up to 10V
• Voltage - Dropout (typical): 0.11V @ 50mA
• Number Of Regulators: 1
• Current - Output: 150mA (Min)
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 10 V
• Output Voltage: 5 V
• Output Type: Fixed
• Dropout Voltage (max): 0.14 V
• Output Current: 150 mA
• Line Regulation: 0.2 % / V
• Load Regulation: 40 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Power Dissipation: 0.6 W
• 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

Rev.5.0
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
Current source
HIGH RIPPLE-REJECTION AND LOW DROPOUT CMOS VOLTAGE REGULATOR
VSS
OUT
VIN
*1. Parasitic diode
Reference voltage circuit
does not exceed V
V
ref
IN
Seiko Instruments Inc.
+0.3 V to prevent the voltage regulator from being broken due to
–
+
Error
amplifier
s
Figure 11
and R
f
ref
. It supplies the output transistor with the gate
) with the V
R
R
s
f
fb
, which is the output voltage
V
fb
*1
S-L2980 Series
VOUT
11