S-T111B27MC-OGMTFG Seiko Instruments, S-T111B27MC-OGMTFG Datasheet - Page 12
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S-T111B27MC-OGMTFG
Manufacturer Part Number
S-T111B27MC-OGMTFG
Description
IC REG LDO 150MA 2.7V SOT23-5
Manufacturer
Seiko Instruments
Datasheet
1.S-T111B15MC-OGATFG.pdf
(23 pages)
Specifications of S-T111B27MC-OGMTFG
Regulator Topology
Positive Fixed
Voltage - Output
2.7V
Voltage - Input
Up to 6.5V
Voltage - Dropout (typical)
0.2V @ 100mA
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
6.5 V
Output Voltage
2.7 V
Output Type
Fixed
Dropout Voltage (max)
0.29 V at 100 mA
Output Current
150 mA
Line Regulation
0.2 % / V
Load Regulation
40 mV
Voltage Regulation Accuracy
1 %
Maximum Power Dissipation
0.3 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
Details
12
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR
S-T111 Series
3. Shutdown pin (ON/OFF pin)
This pin starts and stops the regulator.
When the ON/OFF pin is set to the shutdown level, the operation of all internal circuits stops, and the built-
in P-channel MOS FET output transistor between the VIN pin and VOUT pin is turned off to substantially
reduce the current consumption. The VOUT pin becomes the V
resistance of several MΩ between the VOUT pin and VSS pin.
The structure of the ON/OFF pin is as shown in Figure 12. Since the ON/OFF pin is neither pulled down
nor pulled up internally, do not use it in the floating state. In addition, note that the current consumption
increases if a voltage of 0.3 V to V
used, connect it to the VSS pin if the logic type is “A” and to the VIN pin if it is “B”.
Logic Type
ON/OFF
A
A
B
B
Figure 12
“H”: Power off
“H”: Power on
“L”: Power on
“L”: Power off
ON/OFF Pin
VSS
VIN
IN
Internal Circuits
– 0.3 V is applied to the ON/OFF pin. When the ON/OFF pin is not
Operating
Operating
Stopped
Stopped
Seiko Instruments Inc.
Table 5
VOUT Pin Voltage
Set value
Set value
V
V
SS
SS
level
level
SS
level due to the internally divided
Current Consumption
I
I
I
I
SS1
SS2
SS2
SS1
Rev.3.0
_00