lt3009 Linear Technology Corporation, lt3009 Datasheet - Page 4

• Manufacturer Part Number: lt3009
• Description: 3?a Iq, 20ma Low Dropout Linear Regulators
• Manufacturer: Linear Technology Corporation

LT3009 Series
ELECTRICAL CHARACTERISTICS
PARAMETER
Quiescent Current in Shutdown
Ripple Rejection (Note 3)
Current Limit
Input Reverse Leakage Current
Reverse Output Current
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LT3009 is tested and specifi ed under pulse load conditions
such that T
specifi cations from 0°C to 125°C junction temperature. Specifi cations over
the – 40°C to 125°C operating junction temperature range are assured by
design, characterization and correlation with statistical process controls.
Note 3: The LT3009 adjustable version is tested and specifi ed for these
conditions with the ADJ pin connected to the OUT pin.
Note 4: Operating conditions are limited by maximum junction
temperature. The regulated output voltage specifi cation will not apply
for all possible combinations of input voltage and output current. When
operating at the maximum input voltage, the output current range must be
limited. When operating at the maximum output current, the input voltage
must be limited.
Note 5: Dropout voltage is the minimum input to output voltage differential
needed to maintain regulation at a specifi ed output current. In dropout, the
output voltage equals (V
4
temperature range, otherwise specifi cations are at T
J
≅ T
A
. The LT3009 is guaranteed to meet performance
IN
– V
DROPOUT
).
CONDITIONS
V
V
f
LT3009
LT3009-1.8
LT3009-3.3
LT3009-5
V
V
V
V
RIPPLE
IN
IN
IN
IN
IN
OUT
= 6V, V
– V
= 20V, V
= V
= –20V, V
= 1.2V, V
J
OUT
OUT(NOMINAL)
= 120Hz, I
= 25°C. (Note 2)
SHDN
= 1.5V, V
OUT
OUT
The
IN
= 0V
= 0
= 0
= 0
LOAD
l
RIPPLE
+ 1V, ΔV
denotes the specifi cations which apply over the full operating
= 20mA
Note 6: To satisfy minimum input voltage requirements, the LT3009
adjustable version is tested and specifi ed for these conditions with an
external resistor divider (61.9k bottom, 280k top) which sets V
The external resistor divider adds 9.69μA of DC load on the output. This
external current is not factored into GND pin current.
Note 7: GND pin current is tested with V
a current source load. GND pin current will increase in dropout. For the
fi xed output voltage versions, an internal resistor divider will add to the
GND pin current (∼2μA for the LT3009-5, ∼1μA for the LT3009-1.8 and
LT3009-3.3). See the GND Pin Current curves in the Typical Performance
Characteristics section.
Note 8: The SHDN pin can be driven below GND only when tied to the IN
pin directly or through a pull-up resistor. If the SHDN pin is driven below
GND by more than –0.3V while IN is powered, the output will turn on.
Note 9: Output noise is listed for the adjustable version with the ADJ pin
connected to the OUT pin. See the RMS Output Noise vs Load Current
curve in the Typical Performance Characteristics Section.
= 0.5V
OUT
= – 5%
P-P
,
l
l
l
MIN
60
54
49
44
22
IN
= V
OUT(NOMINAL)
TYP
200
0.6
72
66
61
56
60
MAX
350
<1
10
+ 0.5V and
OUT
to 3.3V.
UNITS
3009fa
mA
mA
μA
dB
dB
dB
dB
μA
μA