TK112XXCM - VOLTAGE REGULATOR WITH ON/OFF SWITCH
Toko Inc 2008/10/11 10:47
DESCRIPTION
The TK112xxC is a low dropout linear regulator with a builtin electronic switch. The internal switch can be controlled by TTL or CMOS logic levels. The device is in the “on” state when the control pin is pulled to a logic high level. An external capacitor can be connected to the noise bypass pin to lower the output noise level to 30 μVrms.
An internal PNP pass transistor is used to achieve a low dropout voltage of 170 mV (typ.) at 200 mA load current. The TK112xxC has a very low quiescent current of 65 μA at no load and 1.8 mA with a 100 mA load.The internal thermal shut down circuitry limits the junction temperature to150 °C.
The load current is internally monitored and the device will shut down in the presence of a short circuit or overcurrent condition at the output.
The TK112xxCM circuit features very high stability in both DC and AC. An output capacitor of 0.1 F provides stable operation for VOUT is higher or equal to 2.5 V. Any type of capacitor can be
used; however, the larger this capacitor is, the better the overall characteristics are. The ripple rejection ratio is 84 dB at 400 Hz, and 80 dB at 1 kHz.
The TK112xxC is available in the SOT23L-6 surface mount package.
FEATURES
*High Precision Voltage at ± 1.5% or ± 50 mV
*Active High On/Off Control
*Very Low Dropout Voltage: (Vdrop = 105 mV at 100 mA)
*Very Good Stability: CL = 0.1uF is Stable for any Type Capacitor with Vout higher or equal to 1.8 V (Iout > 0.5 mA)
*Excellent Ripple Rejection Ratio (80 dB @ 1 kHz)
*Very Low Quiescent Current (Iq = 65 uA at Iout = 0 mA)
*Peak Output Current is 480 mA
*SOT23L-6 Surface Mount Package
*Very Low Noise
*Built-in Reverse Bias Protection
*Internal Thermal Shutdown
*Short Circuit Protection
APPLICATIONS
*Battery Powered Systems
*Cellular Telephones
*Pagers
*Personal Communications Equipment
*Portable Instrumentation
*Portable Consumer Equipment
*Radio Control Systems
*Toys
*Low Voltage Systems
TK11215C, TK11216C, TK11217C, TK11218C, TK11219C, TK11220C, TK11221C, TK11222C, TK11223C, TK11224C, TK11225C, TK11226C, TK11227C, TK11228C, TK11229C,TK11230C, K11231C, TK11232C, TK11233C, TK11234C, TK11235C, TK11236C, TK11237C, TK11238C, TK11239C, TK11240C ,TK11241C,TK11242C, TK11243C, TK11244C, TK11245C, TK11246C, TK11247C, TK11248C, TK11249C, TK11250C
The TK112xxC is a low dropout linear regulator with a builtin electronic switch. The internal switch can be controlled by TTL or CMOS logic levels. The device is in the “on” state when the control pin is pulled to a logic high level. An external capacitor can be connected to the noise bypass pin to lower the output noise level to 30 μVrms.
An internal PNP pass transistor is used to achieve a low dropout voltage of 170 mV (typ.) at 200 mA load current. The TK112xxC has a very low quiescent current of 65 μA at no load and 1.8 mA with a 100 mA load.The internal thermal shut down circuitry limits the junction temperature to150 °C.
The load current is internally monitored and the device will shut down in the presence of a short circuit or overcurrent condition at the output.
The TK112xxCM circuit features very high stability in both DC and AC. An output capacitor of 0.1 F provides stable operation for VOUT is higher or equal to 2.5 V. Any type of capacitor can be
used; however, the larger this capacitor is, the better the overall characteristics are. The ripple rejection ratio is 84 dB at 400 Hz, and 80 dB at 1 kHz.
The TK112xxC is available in the SOT23L-6 surface mount package.
FEATURES
*High Precision Voltage at ± 1.5% or ± 50 mV
*Active High On/Off Control
*Very Low Dropout Voltage: (Vdrop = 105 mV at 100 mA)
*Very Good Stability: CL = 0.1uF is Stable for any Type Capacitor with Vout higher or equal to 1.8 V (Iout > 0.5 mA)
*Excellent Ripple Rejection Ratio (80 dB @ 1 kHz)
*Very Low Quiescent Current (Iq = 65 uA at Iout = 0 mA)
*Peak Output Current is 480 mA
*SOT23L-6 Surface Mount Package
*Very Low Noise
*Built-in Reverse Bias Protection
*Internal Thermal Shutdown
*Short Circuit Protection
APPLICATIONS
*Battery Powered Systems
*Cellular Telephones
*Pagers
*Personal Communications Equipment
*Portable Instrumentation
*Portable Consumer Equipment
*Radio Control Systems
*Toys
*Low Voltage Systems
TK11215C, TK11216C, TK11217C, TK11218C, TK11219C, TK11220C, TK11221C, TK11222C, TK11223C, TK11224C, TK11225C, TK11226C, TK11227C, TK11228C, TK11229C,TK11230C, K11231C, TK11232C, TK11233C, TK11234C, TK11235C, TK11236C, TK11237C, TK11238C, TK11239C, TK11240C ,TK11241C,TK11242C, TK11243C, TK11244C, TK11245C, TK11246C, TK11247C, TK11248C, TK11249C, TK11250C
TK112XXCM - VOLTAGE REGULATOR WITH ON/OFF SWITCH
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