S-1701A2521-M5T1G Seiko Instruments, S-1701A2521-M5T1G Datasheet - Page 41

• Manufacturer Part Number: S-1701A2521-M5T1G
• Description: IC DETECT/REG 400MA 2.5V SOT23-5
• Manufacturer: Seiko Instruments

Specifications of S-1701A2521-M5T1G

• Applications: Converter, Battery Powered Devices
• Voltage - Input: 2 ~ 6.5 V
• Number Of Outputs: 1
• Voltage - Output: 2.5V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Rev.3.0
HIGH RIPPLE-REJECTION LOW DROPOUT CMOS VOLTAGE REGULATOR WITH RESET FUNCTION
3. Shutdown pin (ON/OFF pin) (S-1701 Series A/B/C/D/E/F/G/H/J/K/L/M types)
This pin starts and stops the regulator.
When the ON/OFF pin is set to the shutdown level, the operation of all internal circuits stop, 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. At this time, the current consumption equals that consumed by the detector block, because the internal
circuits of the detector are operating. The VOUT pin becomes the V
several hundred kΩ between the VOUT pin and VSS pin.
The structure of the ON/OFF pin is as shown in Figure 35. 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
product type.
Product Type
A/B/C/D/E/F
A/B/C/D/E/F
G/H/J/K/L/M
G/H/J/K/L/M
S-1701 Series A/B/C/D/E/F types:
S-1701 Series G/H/J/K/L/M types:
_00
IN
− 0.3 V is applied to the ON/OFF pin. When the ON/OFF pin is not used, connect it as follows according to the
“H”: Shutdown
“L”: Shutdown
“H”: Power on
“L”: Power on
ON/OFF Pin
ON/OFF
Seiko Instruments Inc.
Internal Circuits
Connect to the VSS pin.
Connect to the VIN pin.
Operating
Operating
Stopped
Stopped
Figure 35
Table 32
VSS
VIN
VOUT Pin Voltage
SS
level due to the internally divided resistance of
Set value
Set value
V
V
SS
SS
level
level
Current Consumption
S-1701 Series
I
I
I
I
SSD
SSD
SS
SS
41