SPX2730 Просмотр технического описания (PDF) - Signal Processing Technologies

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SPX2730

3A High Current Low Dropout Voltage Regulator Adjustable & Fixed Output, Fast Response

Signal Processing Technologies 

(Cont.)

Upper Threshold

Voltage

Lower Threshold

Voltage

Hysteresis

Device set for 5V (Note 9)

Device set for 5V (Note 9)

Device set for 5V (Note 9)

ENABLE Input SPX2731/SPX2732

Input Logic Voltage

Low (OFF)

High (ON)

Enable Pin

Input Current

VEN = 16V

VEN = 0.8V

Regulator Output

Current in Shutdown

(Note 10)

SPX2730/31/32/33

60

40

mV

25

75

95

mV

140

15

mV

0.8

V

2.4

100

600

V

750

1

µA

2

10

µA

500

Notes:

The Bold specifications apply to the full operating temperature range.

Note 1: Maximum positive supply voltage of 60V must be of limited duration (<100msec) and duty cycle.) The maximum continuous supply voltage is 16V.

Note 2: Full load current (IFL) is defined as 1.5A for the

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 + 1V applied to VIN.

Note 4: VIN = VOUT (NOMINAL) +1V. For example, use VIN= 4.3V for a3.3V 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 to the ground current.

Note 6: Output voltage temperature coefficient is defined as the worst case voltage changed divided by the total temperature range.

Note 7: Thermal regulation is defined as the change in the 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 as VIN = 20V (a 4W pulse) for T = 10ms.

Note 8: VREF ≤ VOUT ≤ (VIN – 1), 2.3V ≤ VIN≤ 16V, 10mA < IL ≤ IFL, TJ ≤ TJMAX

Note 9: Comparator threshold is expressed in terms of a voltage differential at the Adjust terminal below the nominal reference voltage measured a 6V input. To

express these thresholds in terms of output voltage change, multiply the error amplifier gain = VOUT/VREF = (R1 + R2)R2. For example, at a programmable output

voltage of 5V, the Error output is guaranteed to go low when the output drops by 95mVx 5V/ 1.240V = 38mV. Threshold remain constant as a percent of VOUT as VOUT

is varied, with the dropout warning occurring at typically 5% below nominal, 7.7% guaranteed.

Note 10: VEN ≤ 0.8V and VIN ≤ 16V, VOUT = 0.

Rev. 12/7/00

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