LP2986IM-3.3 National Semiconductor, LP2986IM-3.3 Datasheet - Page 12

• Manufacturer Part Number: LP2986IM-3.3
• Description: IC, LDO, 3.3V, 200MA, 8SOIC
• Manufacturer: National Semiconductor

Specifications of LP2986IM-3.3

• Primary Input Voltage: 16V
• Output Voltage: 3.3V
• Dropout Voltage Vdo: 180mV
• No. Of Pins: 8
• Output Current: 200mA
• Voltage Regulator Case Style: SOIC
• Operating Temperature Range: -40°C To +125°C
• Svhc: No SVHC
• Output Voltage Fixed: 3.3V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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Typical Performance Characteristics
C
Application Hints
LLP Package Devices
The LP2986 is offered in the 8 lead LLP surface mount
package to allow for increased power dissipation compared
to the SO-8 and Mini SO-8. For details on thermal perfor-
mance as well as mounting and soldering specifications,
refer to Application Note AN-1187.
EXTERNAL CAPACITORS
Like any low-dropout regulator, external capacitors are re-
quired to assure stability. These capacitors must be correctly
selected for proper performance.
INPUT CAPACITOR: An input capacitor (≥ 2.2 µF) is re-
quired between the LP2986 input and ground (amount of
capacitance may be increased without limit).
This capacitor must be located a distance of not more than
0.5” from the input pin and returned to a clean analog
ground. Any good quality ceramic or tantalum may be used
for this capacitor.
OUTPUT CAPACITOR: The output capacitor must meet the
requirement for minimum amount of capacitance and also
have an appropriate E.S.R. (equivalent series resistance)
value.
IN
= 2.2 µF, S/D is tied to V
Output Impedance vs Frequency
Output Noise Density
IN
, V
IN
= V
O
(NOM) + 1V, I
01293536
01293534
L
= 1 mA. (Continued)
Unless otherwise specified: T
12
Curves are provided which show the allowable ESR range
as a function of load current for various output voltages and
capacitor values (see ESR curves below).
Output Impedance vs Frequency
ESR Curves For 5V Output
Ripple Rejection
A
= 25˚C, C
OUT
= 4.7 µF,
01293535
01293533
01293506