Power Management ICs

5.5 V Input, 1000 mA Voltage Regulator S-13A1 Series

The S-13A1 Series is a positive voltage regulator with a low dropout voltage, high-accuracy output voltage, and low current consumption developed based on CMOS technology.
A 2.2 μF small ceramic capacitor can be used, and the very small dropout voltage and the large output current due to the built-in transistor with low on-resistance are provided. The S-13A1 Series includes a load current protection circuit that prevents the output current from exceeding the current capacity of the output transistor and a thermal shutdown circuit that prevents damage due to overheating. In addition to the types in which output voltage is set inside the IC, a type for which output voltage can be set via an external resistor is added to a lineup. Also, the S-13A1 Series includes an inrush current limit circuit to limit the excess inrush current generated at power-on or at the time when the ON / OFF pin is set to ON. High heat radiation HSOP-8A and HSOP-6 or small SOT-89-5 packages realize high-density mounting.

Features

Output voltage (internally set)
1.0 V to 3.5 V, selectable in 0.05 V step
Output voltage (externally set)
1.05 V to 5.0 V, settable via external resistor (HSOP-8A, HSOP-6 and SOT-89-5 only)
Input voltage
1.5 V to 5.5 V
Output voltage accuracy
±1.0% (internally set, 1.0 V to 1.45 V output product: ±15mV)
Dropout voltage
70 mV typ. (3.0 V output product, IOUT = 300 mA)
Current consumption
During operation
60 μA typ., 90 μA max.
 During power-off
0.1 μA typ., 1.0 μA max.
Output current
Possible to output 1000 mA (VIN ≥ VOUT(S) + 1.0 V)*1
Input and output capacitors
A ceramic capacitor of 2.2 μF or more can be used.
Ripple rejection
70dB typ. (f=1.0kHz)
Built-in overcurrent protection circuit
Limits overcurrent of output transistor.
Built-in thermal shutdown circuit
Prevents damage caused by heat.
Built-in inrush current limit circuit
Limits excessive inrush current generated at power-on or at the time when the ON / OFF pin is set to ON.
For types in which output voltage is internally set of HSOP-8A, HSOP-6 and SOT-89-5 inrush current limit time can be changed via an external capacitor (CSS).
Inrush current limit time 0.7 ms typ.
(types in which output voltage is internally set of HSOP-8A, HSOP-6 SOT-89-5, CSS = 1.0 nF)
Inrush current limit time 0.4 ms typ.
(types in which output voltage is internally set of HSOP-8A, HSOP-6, SOT-89-5, SSC pin = open)
Inrush current limit time 0.4 ms typ.
(types in which output voltage is externally set of HSOP-8A, HSOP-6, SOT-89-5)
Built-in ON / OFF circuit
Ensures long battery life.
Discharge shunt function “available” / “unavailable” is selectable.
Pull-down function “available” / “unavailable” is selectable.
Operation temperature range
Ta = −40°C to +85°C
Lead-free (Sn 100%), halogen-free

*1. Please make sure that the loss of the IC will not exceed the power dissipation when the output current is large.

Applications

  • Constant-voltage power supply for battery-powered device
  • Constant-voltage power supply for TV, notebook PC and home electric appliance
  • Constant-voltage power supply for portable equipment

Parts List

  • These descriptions may be different from the actual product name and parameter.
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  • The information herein is subject to change without notice.