S-1701A3327-U5T1G Seiko Instruments, S-1701A3327-U5T1G Datasheet - Page 43
![no-image](/images/manufacturer_photos/0/5/590/seiko_instruments_sml.jpg)
S-1701A3327-U5T1G
Manufacturer Part Number
S-1701A3327-U5T1G
Description
IC DETECT/REG 400MA 3.3V SOT89-5
Manufacturer
Seiko Instruments
Datasheet
1.S-1701A1815-M5T1G.pdf
(71 pages)
Specifications of S-1701A3327-U5T1G
Applications
Converter, Battery Powered Devices
Voltage - Input
2 ~ 6.5 V
Number Of Outputs
1
Voltage - Output
3.3V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-89-5
Polarity
Positive
Input Voltage Max
6.5 V
Output Voltage
3.3 V
Output Type
Fixed
Dropout Voltage (max)
0.21 V at 100 mA
Output Current
0.4 A
Line Regulation
0.2 % / V
Load Regulation
40 mV
Voltage Regulation Accuracy
1 %
Maximum Power Dissipation
1000 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Rev.3.0
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
2. Delay circuit
3. Delay circuit output voltage detection type (S-1701 Series D/E/F/K/L/M/U/V/W types)
The delay circuit delays the output signal from the time when the SENSE voltage (V
(+V
below the detection voltage (−V
The delay time (t
constant current and a capacitor.
If the input voltage or load current changes transiently, an undershoot or overshoot occurs in the output voltage of the
regulator. In the product types in which the output voltage of the regulator is detected by the detector, if the output
voltage is the detection voltage or lower due to the undershoot, the detector operates and a reset signal may be
output. To prevent this, set the value of the input-and-output capacitor of a regulator so that the undershoot is the
minimum value or set a voltage range that allows the difference between the output voltage and detection voltage to be
equal to or greater than the undershoot.
DET
_00
) when V
SENSE
Remark The above figure shows the case when the SENSE pin is connected to VIN.
D
) is a fixed value that is determined by a counter and a built-in clock generator which consists of
is turned on (refer to point B in Figure 37). The output signal is not delayed when V
Hysteresis width (V
DET
) (refer to point A in Figure 37).
V
IN
(V
HYS
SENSE
Seiko Instruments Inc.
)
(1)
V
)
Figure 37 Operation
SS
(2)
A
(3)
(4)
B
(5)
t
D
Detection voltage (−V
Minimum operating voltage
Release voltage (+V
V
V
Output from VDOUT pin
DD
SS
SENSE
) exceeds the release voltage
DET
DET
)
)
S-1701 Series
SENSE
goes
43