 2016 Microchip Technology Inc.

DS20005685A-page 7

MIC2915X/30X/50X/75X

ENABLE Input - MIC29xx1/MIC29xx2

Input Logic Voltage Low

(OFF)

——

0.8

V

—

Input Logic Voltage High

(ON)

2.4

—

—

V

—

Enable Pin Input Current

—100

600

µA

VEN = 26V

——

750

0.7

—

2

VEN = 0.8V

——

4

Regulator Output Current

in Shutdown

—10

500

µA

VEN ≤ 0.8V and VIN ≤ 26V, VOUT = 0.

Note 1:

Specification for packaged product only.

2:

When used in dual supply systems where the regulator load is returned to a negative supply, the output

voltage must be diode clamped to ground.

3:

Full load current (IFL) is defined as 1.5A for the MIC2915x, 3A for the MIC2930x, 5A for the MIC2950x,

and 7.5A for the MIC2975x families.

4:

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

temperature range.

5:

Dropout voltage is defined as the input-to-output differential when the output voltage drops to 99% of its

normal value with VOUT + 1V applied to VIN.

6:

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.

7:

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 pin current.

8:

VREF ≤ VOUT ≤ (VIN – 1V), 2.3V ≤ VIN ≤ 26V, 10 mA < IL ≤ IFL, TJ ≤ TJMAX.

9:

Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipa-

tion is applied, excluding load or line regulation effects. Specifications are for a 200 mA load pulse at VIN =

20V (a 4W pulse) for T = 10 ms.

10:

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 95 mV x

5V/1.240V = 384 mV. Thresholds remain constant as a percent of VOUT as VOUT is varied, with the drop-

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

TABLE 1-1:

ELECTRICAL CHARACTERISTICS (Note 1, Note 2) (CONTINUED)

Electrical Characteristics:

VIN = VOUT + 1V; IOUT = 10 mA; TJ = +25°C. Bold values indicate –40°C ≤ TJ ≤ +125°C,

unless noted.

Parameter

Symbol

Min.

Typ.

Max.

Units

Conditions