Datasheet

Micrel, Inc. MIC5219
June 2009 4 M0371-061809
Electrical Characteristics
(3)
V
IN
= V
OUT
+ 1.0V; C
OUT
= 4.7µF, I
OUT
= 100µA; T
J
= 25°C, bold values indicate –40°C ≤ T
J
≤ +125°C; unless noted.
Symbol Parameter Conditions Min Typical Max Units
V
OUT
Output Voltage Accuracy variation from nominal V
OUT
–1 1 %
–2 2 %
ΔV
OUT
/ΔT Output Voltage Note 4 40
ppm/°C
Temperature Coefcient
ΔV
OUT
/V
OUT
Line Regulation V
IN
= V
OUT
+ 1V to 12V 0.009 0.05 %/V
0.1
ΔV
OUT
/V
OUT
Load Regulation I
OUT
= 100µA to 500mA, Note 5 0.05 0.5 %
0.7
V
IN
– V
OUT
Dropout Voltage
(6)
I
OUT
= 100µA 10 60 mV
80
I
OUT
= 50mA 115 175 mV
250
I
OUT
= 150mA 175 300 mV
400
I
OUT
= 500mA 350 500 mV
600
I
GND
Ground Pin Current
(7, 8)
V
EN
≥ 3.0V, I
OUT
= 100µA 80 130 µA
170
V
EN
≥ 3.0V, I
OUT
= 50mA 350 650 µA
900
V
EN
≥ 3.0V, I
OUT
= 150mA 1.8 2.5 mA
3.0
V
EN
≥ 3.0V, I
OUT
= 500mA 12 20 mA
25
Ground Pin Quiescent Current
(8)
V
EN
≤ 0.4V 0.05 3 µA
V
EN
≤ 0.18V 0.10 8 µA
PSRR Ripple Rejection f = 120Hz 75 dB
I
LIMIT
Current Limit V
OUT
= 0V 700 1000 mA
ΔV
OUT
/ΔP
D
Thermal Regulation Note 9 0.05 %/W
e
no
Output Noise
(10)
I
OUT
= 50mA, C
OUT
= 2.2µF, C
BYP
= 0 500
nV/ Hz
I
OUT
= 50mA, C
OUT
= 2.2µF, C
BYP
= 470pF 300
nV/ Hz
ENABLE Input
V
ENL
Enable Input Logic-Low Voltage V
EN
= logic low (regulator shutdown) 0.4 V
0.18
V
EN
= logic high (regulator enabled) 2.0 V
I
ENL
Enable Input Current V
ENL
≤ 0.4V 0.01 –1 µA
V
ENL
≤ 0.18V 0.01 –2 µA
I
ENH
V
ENH
≥ 2.0V 2 5 20 µA
25
Absolute Maximum Ratings
(1)
Supply Input Voltage (V
IN
) ..............................–20V to +20V
Power Dissipation (P
D
) ............................. Internally Limited
Junction Temperature (T
J
) ........................ –40°C to +125°C
Storage Temperature (T
S
) ........................ –65°C to +150°C
Lead Temperature (Soldering, 5 sec.) ....................... 260°C
Operating Ratings
(2)
Supply Input Voltage (V
IN
) ............................ +2.5V to +12V
Enable Input Voltage (V
EN
)....................................0V to V
IN
Junction Temperature (T
J
) ........................ –40°C to +125°C
Package Thermal Resistance ........................... see Table 1