LP5900SDX-2.2 datasheet(5/25 Pages) TI1

Part #	LP5900SDX-2.2

Description	LP5900 Ultra Low Noise, 150 mA Linear Regulator for RF/Analog Circuits Requires No Bypass Capacitor

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Manufacturer	TI1 [Texas Instruments]

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LP5900

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SNVS358O – JULY 2005 – REVISED MAY 2013

Electrical Characteristics (continued)

Limits in standard typeface are for TA = 25ºC. Limits in boldface type apply over the full operating junction temperature range

(-40°C

≤ TJ ≤ +125°C). Unless otherwise noted, specifications apply to the LP5900 Typical Application Circuit (pg. 1) with: VIN

= VOUT (NOM) + 1.0V, VEN = 1.2V, CIN = COUT = 0.47 μF, IOUT = 1.0 mA.

(1), (2)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

IEN

Input Current at VEN Pin

VEN = 5.5V and VIN = 5.5V

5.5

μA

(9)

VEN = 0.0V and VIN = 5.5V

0.001

Transient Characteristics

ΔVOUT

Line Transient

VIN = (VOUT(NOM) + 1.0V) to (VOUT(NOM) +

−2

(8)

1.6V) in 30

μs, IOUT = 1 mA

mV

VIN = (VOUT(NOM) + 1.6V) to (VOUT(NOM) +

2

1.0V) in 30

μs, IOUT = 1 mA

Load Transient

IOUT = 1 mA to 150 mA in 10 μs

−110

mV

(8)

IOUT = 150 mA to 1 mA in 10 μs

50

Overshoot on Startup

20

mV

(8)

Turn on Time

To 95% of VOUT(NOM)

150

300

μs

(9)

There is a 1 M

Ω resistor between VEN and ground on the device.

Output & Input Capacitor, Recommended Specifications

Symbol

Parameter

Conditions

Min

Nom

Max

Units

CIN

Input Capacitance

Capacitance for stability

0.33

0.47

µF

COUT

Output Capacitance

0.33

0.47

10

ESR

Output/Input Capacitance

5

500

m

Ω

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