TS29152 Datasheet, PDF (3/8 Pages) Taiwan Semiconductor Company, Ltd – 1.5A Ultra Low Dropout Voltage Regulator

TS29152
1.5A Ultra Low Dropout Voltage Regulator
Electrical Specification (Continue)
Note 1: Absolute Maximum Rating is limits beyond which damage to the device may occur. For guaranteed
specifications and test conditions see the Electrical Characteristics.
Note 2: Maximum positive supply voltage of 60V must be limited duration (<100mS) and duty cycle (<1%).
Note 3: The maximum allowable power dissipation is a function of the maximum junction temperature, T_J, the junction
to ambient thermal resistance, θ, and the ambient temperature , Ta. Exceeding the maximum allowable
power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. The
effective value of θ_JA can be reduced by using a heatsink.
Note 4: Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its
nominal value measured at 1V differential.
Note 5: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of
the ground pin current and output load current.
Note 6: Output current will decrease with increasing temperature, but it will be not dropped below 1.5A at the
maximum specified temperature.
Note 7: Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation
is applied, excluding load or line regulation effects. Specification are for a 200mA load pulse at V_IN =20V(a
4W pulse) for T=10mS
Note 8: Comparator thresholds are expressed in terms of a voltage differential at the adjust terminal below the
nominal reference voltage measured at 6V input. To express these thresholds in terms of output voltage
change, multiply by the error amplifier gain = V_OUT/V_REF = (R1+R2) / R2. For example, at a programmed
output voltage of 5V, the error output is guaranteed to go low when the output drops by 95mV x 5V / 1.24V =
384mV. Thresholds remain constant as a percent of V_OUT as V_OUT is varied, with the dropout warning
occurring at typically 5% below nominal, 7.7% guaranteed.
Pin Description
Pin Configuration
Enable
Function Description
Enable (input): TTL/COMS compatible input. Logic high is enable; logic low or open is
shutdown
Input
Ground
Unregulated input: +26V maximum supply
Ground: Ground pin and TAB/heatsink are internally connected.
Output
Adjust
Regulator output
Adjustment input: Feedback input. Connect to resistive voltage-divider network.
Typical Application Circuit
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Version: A09