s-1135a13-u5t1g Seiko Instruments Inc., s-1135a13-u5t1g Datasheet - Page 23

• Manufacturer Part Number: s-1135a13-u5t1g
• Description: High Ripple-rejection Low Dropout Middle Output Current Cmos Voltage Regulator
• Manufacturer: Seiko Instruments Inc.

Rev.1.1
5. Overcurrent protection circuit
6. Pull-down / pull-up resistor (S-1135 Series A / C / E / G types)
HIGH RIPPLE-REJECTION LOW DROPOUT MIDDLE OUTPUT CURRENT CMOS VOLTAGE REGULATOR
The S-1135 Series has an overcurrent protection circuit having the characteristics shown in “(1) Output Voltage vs.
Output Current (When Load Current Increases) (Ta = 25°C)” in “
protect the output transistor against an excessive output current and short circuiting between the VOUT and VSS
pins. The current (I
normal value is restored for the output voltage, if releasing a short circuit once.
Caution Using the overcurrent protection circuit is to protect the output transistor from accidental
In the S-1135 Series A / C / E / G types, the ON / OFF pin is internally pulled up to VIN or pulled down to VSS, so
the VOUT pin is in the V
Note that the IC’s current consumption increases as much as current flows into the pull-up / pull-down resistor of 2.2
MΩ (typ.) when; the ON / OFF pin is connected to VIN in the A / C type, the ON / OFF pin is connected to VSS in
the E / G type.
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conditions such as short circuited load and the rapid and large current flow in the large capacitor.
The overcurrent protection circuit is not suitable for use under the short circuit status or large
current flowing (300 mA or more) that last long.
short
) when the output pin is short-circuited is internally set at approx. 100 mA (typ.), and the
SS
level when in the floating status.
Seiko Instruments Inc.
Characteristics (Typical Data)”, in order to
S-1135 Series
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