L5150CS STMicroelectronics, L5150CS Datasheet - Page 14

• Manufacturer Part Number: L5150CS
• Description: IC REG LDO 5V 150MA 8SOIC
• Manufacturer: STMicroelectronics
• Type: Linearr

Specifications of L5150CS

• Regulator Topology: Positive Fixed
• Voltage - Output: 5V
• Voltage - Input: 5.6 ~ 40 V
• Number Of Regulators: 1
• Current - Output: 150mA
• Current - Limit (min): 280mA
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Package: 8SO
• Function: LDO
• Number Of Outputs: 1
• Input Voltage Range: 31 to 5.6 V
• Output Voltage: 5 V
• Maximum Output Current: 0.15 A
• Output Type: Fixed
• Accuracy: ±2 %
• Polarity: Positive
• Reference Voltage: 2.5(Typ) V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Dropout (typical): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Application information
3
3.1
14/34
Application information
Voltage regulator
The voltage regulator uses a p-channel mos transistor as a regulating element. With this
structure a very low dropout voltage at current up to 150 mA is obtained. The output voltage
is regulated up to input supply voltage of 40 V. The high-precision of the output voltage (2%)
is obtained with a pre-trimmed reference voltage. The voltage regulator automatically adapts
its own quiescent current to the output current level. In light load conditions the quiescent
current goes to 55 µA only (low consumption mode). This procedure features a certain
hysteresis on the output current (see
thermal shutdown are provided.
Figure 21. Application schematic
The input capacitor
may occur on the line. The second input capacitor
distant from the V
capacitor, connected to the output pin, is for bypassing to GND the high-frequency noise
and it guarantees stability even during sudden line and load variations. Suggested value is
C
Stability region is reported in
0
=
220
nF with
ESR 100
S
pin and it compensates smooth line disturbances. The C
C
1
≥
≥
100
mΩ
µF is necessary as backup supply for negative pulses which
Figure
Doc ID 15542 Rev 11
.
22.
Figure
7). Short-circuit protection to GND and a
C
2
≥
220
nF is needed when the C
L5150CJ / L5150CS
0
ceramic
1
is too