TS29152 datasheet(3/8 Pages) TSC

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TS29152

1.5A Ultra Low Dropout Voltage Regulator

3/8

Version: B13

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, TJ, 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 θJA 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

VIN =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 = VOUT/VREF = (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 VOUT as VOUT is varied, with the dropout warning

occurring at typically 5% below nominal, 7.7% guaranteed.

Pin Description

Pin Configuration

Function Description

Enable

Enable (input): TTL/COMS compatible input. Logic high is enable; logic low or open is

shutdown

Input

Unregulated input: +26V maximum supply

Ground

Ground: Ground pin and TAB/heatsink are internally connected.

Output

Regulator output

Adjust

Adjustment input: Feedback input. Connect to resistive voltage-divider network.

Typical Application Circuit

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