LM29152R-3.0 参数 Datasheet PDF下载

1.5A Very L.D.O Voltage Regulator

LM29151 / LM29153

LM29150/1/2/3

LM29151 / LM29152

[ 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

2. Full load current(IFL ) is defined as 1.5A

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

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.

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.

6. Output voltage temperature coefficient is defined as the worst case voltage change divided by the total

temperature range.

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

8. Vref ≤ Vout ≤ (Vin -1V), 2.3V ≤ Vin ≤ 26V, 10mA＜IL IFL, TJ＜ TJ Max

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.

10. Ven ≤ 0.8V and Vin≤26V, Vout=0

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.

Mar. 2006-Rev06

95

HTC