LM3686_14 datasheet(7/28 Pages) TI1

Part #	LM3686

Description	Step-Down DC-DC Converter with Integrated Post Linear Regulators System and Low-Noise Linear Regulator

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Manufacturer	TI1 [Texas Instruments]

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LM3686

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SNVS520D – AUGUST 2008 – REVISED MARCH 2011

Electrical Characteristics

(1) (2) (3) (4) Linear Regulator — LILO (EN_DCDC = EN_LILO = ON - Large

NMOS) (continued)

Limits in standard typeface are for TA = 25°C. Limits appearing in boldface type apply over the full operating ambient

temperature range: -40°C

≤ TA= TJ ≤ +85°C. Unless otherwise noted, specifications apply to the closed loop typical

application circuits (linear regulator) with VIN_LDO = VBATT = 3.6V

(5) , V

IN_LILO = VOUT_DCDC(NOM), VEN (All) = VBATT, CIN_DC = 4.7 µF,

COUT_LILO = 2.2 µF, CIN_LDO = 1.0 µF , COUT_LDO = 1.0 µF ,COUT_DC = C IN_LILO = 10 µF

Limits

Symbol

Parameter

Condition

Units

Min

Typ

Max

ΔVIN_LILO

Dynamic line transient

VBATT = 3.1V to 3.7V

response on VBATT

VIN_LILO = VOUT_DCDC

+/-15

mV

tr, tf = 10 µS, IOUT = 200 mA

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