LK112SM18TR STMicroelectronics, LK112SM18TR Datasheet - Page 11

• Manufacturer Part Number: LK112SM18TR
• Description: IC REG LDO 200MA 1.8V SOT23-5
• Manufacturer: STMicroelectronics

Specifications of LK112SM18TR

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.8V
• Voltage - Input: 2.5 ~ 14 V
• Number Of Regulators: 1
• Current - Output: 200mA
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Number Of Outputs: 1
• Polarity: Positive
• Input Voltage Max: 14 V
• Output Voltage: 1.8 V
• Output Type: Fixed
• Dropout Voltage (max): 0.5 V at 200 mA
• Output Current: 200 mA
• Line Regulation: 40 mV
• Load Regulation: 90 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Dropout (typical): -
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Details
• Other names: 497-7811-2; LK112SM18TR

Figure 27. Line transient
V
Figure 29. Load transient
V
I
I
=3.5 to 4.5V, V
=3.5V, V
C
C
O
O
=1µF, C
=10µF, C
O
=2.5V, V
BYP
BYP
O
=2.5V, V
=1nF, t
=100nF, t
SHDN
s
= 1.8V, I
=t
SHDN
f
=2µs
s
=t
= 1.8V, I
f
=250ns
O
=50 to 100mA, C
O
=30mA, no C
I
=1µF,
I
,
Figure 28. Load transient
V
Figure 30. Load transient
V
I
I
=3.5V, V
=4.8V, V
C
C
O
O
=2.2µF, C
=2.2µF, C
O
O
=2.5V, V
=3.8V, V
BYP
BYP
=10nF, t
=10nF, t
SHDN
SHDN
= 1.8V, I
= 1.8V, I
s
s
=t
=t
f
f
=250ns
=250ns
O
O
=50 to 100mA, C
=50 to 100mA, C
I
I
=1µF,
=1µF,
11/17