S-816A26AMC-BABT2G Seiko Instruments, S-816A26AMC-BABT2G Datasheet - Page 8

• Manufacturer Part Number: S-816A26AMC-BABT2G
• Description: IC REG LDO 1A 2.6V SOT23-5
• Manufacturer: Seiko Instruments

Specifications of S-816A26AMC-BABT2G

• Regulator Topology: Positive Fixed
• Voltage - Output: 2.6V
• Voltage - Input: Up to 16V
• Voltage - Dropout (typical): 0.1V @ 100mA
• Number Of Regulators: 1
• Current - Output: 1A
• 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: 16 V
• Output Voltage: 2.6 V
• Output Type: Fixed
• Dropout Voltage (max): 100 mV
• Output Current: 1 A
• Line Regulation: 0.15 % / V
• Load Regulation: 60 mV
• Voltage Regulation Accuracy: 2 %
• Maximum Power Dissipation: 600 mW
• 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

8
EXTERNAL TRANSISTOR TYPE CMOS VOLTAGE REGULATOR
S-816 Series
1. Basic Operation
2. Internal Circuits
Operation
2.1. Shutdown Pin (
Figure 7 shows a block diagram of the S-816 Series.
The device compares the voltage which is obtained from dividing output voltage V
resistances R
sink driver. By regulating the base current of the external PNP transistor, the IC maintains a constant
output voltage that is not susceptible to an input voltage variation or temperature variation.
This pin activates and deactivates the regulating operation.
When the shutdown pin is set to "L", the V
PNP transistor to off. All the internal circuits stop working, and substantial savings in current consumption
are achieved accordingly. In this condition, the EXT pin is pulled up to V
(approx. 0.5 MΩ) inside the IC in order to ensure you power cut off of the external PNP transistor.
The shutdown pin is configured as shown in Figure 8. Since neither pull-up or pull-down is performed
internally, please avoid using the pin in a floating state. Also, be sure to refrain from applying a voltage of
0.3 V to 2.4 V to this pin lest the current consumption increase. When this shutdown pin is not used,
leave it coupled to the VIN pin.
Shutdown Pin
"H"
"L"
ON/
IN
OFF
A
and R
Internal Circuit
ON/
Deactivated
Activated
B
with reference voltage V
OFF
V
Pin)
REF
VIN
Table 5
EXT Pin Voltage
+
−
Seiko Instruments Inc.
Error
Amplifier
Current Source
V
IN
IN
V
voltage appears through the EXT pin, prodding the external
−V
IN
Figure 7
BE
VSS
REF
Overcurrent
Protection
Circuit
Sink
Driver
through the error amplifier, output of which controls the
R
C
EXT
VOUT Pin Voltage
Set value
Hi-Z
R
R
A
B
VOUT
IN
by a pull-up resistance
OUT
ON/
+
−
C
by feedback
OFF
OUT
L
Figure 8
Rev.6.0
VIN
VSS
_00