MIC5209 MICREL [Micrel Semiconductor], MIC5209 Datasheet - Page 4

• Manufacturer Part Number: MIC5209
• Description: 500mA Low-Noise LDO Regulator
• Manufacturer: MICREL [Micrel Semiconductor]

MIC5209
ENABLE Input
V
I
I
Note 1.
Note 2.
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
Note 10: C
MIC5209
ENL
ENH
ENL
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
The maximum allowable power dissipation at any T
maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. See Table 1
and the “Thermal Considerations” section for details.
Output voltage temperature coefficient is the worst case voltage change divided by the total temperature range.
Regulation is measured at constant junction temperature using low duty cycle pulse testing. Parts are tested for load regulation in the load
range from 100 A to 500mA. Changes in output voltage due to heating effects are covered by the thermal regulation specification.
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.
Ground pin current is the regulator quiescent current plus pass transistor base current. The total current drawn from the supply is the sum of
the load current plus the ground pin current.
V
Thermal regulation is 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 500mA load pulse at V
packages only].
EN
BYP
is the voltage externally applied to devices with the EN (enable) input pin. [SO-8 (M) and TO-263-5 (U) packages only.]
is an optional, external bypass capacitor connected to devices with a BYP (bypass) or ADJ (adjust) pin. [SO-8 (M) and TO-263-5 (U)
Enable Input Logic-Low Voltage
Enable Input Current
V
V
V
V
V
A
EN
EN
ENL
ENL
ENH
(ambient temperature) is calculated using: P
IN
= logic low (regulator shutdown)
= logic high (regulator enabled)
= 16V for t = 10ms.
0.4V
0.18V
2.0V
4
D(max)
= (T
2.0
J(max)
– T
0.01
0.01
5
A
)
JA
August 2, 2000
. Exceeding the
0.18
0.4
–1
–2
20
25
Micrel
V
V
V
A
A
A
A