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LM29151T-5.0 Datasheet(PDF) 7 Page - HTC Korea TAEJIN Technology Co. |
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LM29151T-5.0 Datasheet(HTML) 7 Page - HTC Korea TAEJIN Technology Co. |
7 / 11 page 1.5A Very L.D.O Voltage Regulator LM29150/29151/29152 Nov. 2009 - Rev. 1.2 - 7 - HTC Reference LM29152 1.228 1.215 1.24 1.252 1.265 V VREF Reference Voltage (Note 8) 1.203 1.277 V IADJ Adjust Pin Bias Current 40 80 120 nA Reference Voltage Temp. Coefficient (Note 7) 20 ppm/℃ Adjust Pin Bias Current Temp. Coefficient 0.1 nA/℃ Enable Input LM29151 / LM29152 VEN Enable Input Voltage Logic Low (Off) Logic High (On) 2.4 0.8 V VEN =26V 100 600 750 μA IEN Enable Pin Input Current VEN =0.8V 2.5 5 μA Regulator Output Current Shutdown (Note 10) 10 500 μA Note 1. Maximum positive supply voltage of 60V must be of limited duration (<100msec) and duty cycle(≤1%). The maximum continuous supply voltage is 26V. Note 2. Full load current (IFL) is defined as 1.5A. Note 3. Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its nominal value with VOUT to VIN. Note 4. VIN = VOUT(nominal) +1V. For example, use VIN = 4.3V for a 3.3V regulator or use 6V for a 5V regulator. Employ pulse-testing procedures to minimize temperature rise. Note 5. Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current plus the ground pin current. Note 6. Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. 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. Specifications are for a 200mA load pulse at VIN = 20V (a 4W pulse) for T= 10ms. Note 8. VREF ≤ VOUT ≤ (VIN -1V), 2.3V ≤ VIN ≤ 26V, 10mA < IL < IFL, TJ< TJ Max. Note 9. 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/ 1.240V - 384mV. Thresholds remain constant as a percent of VOUT as VOUT is varied, with the dropout warining occurring at typically 5% below nominal, 7.7% guaranteed. Note 10. VEN ≤ 0.8V and VIN ≤26V, VOUT =0. Note 11. When used in dual supply system where the regulator load is returned to a negative supply, the output voltage must be diode clamped to ground. |
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