AS1334 datasheet(6/19 Pages) AMSCO

номер детали	AS1334

подробное описание детали	650mA, Ultra low Ripple Step Down DC/DC Converter

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производитель	AMSCO [ams AG]

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www.austriamicrosystems.com/DC-DC_Step-Down/AS1334

Revision 1.09

5 - 18

AS1334

Datasheet - Electrical Character i s t ics

6.1 System Characteristics

TA = 25ºC; PVIN = VDD = EN = 3.6V, unless otherwise noted. The following parameters are verified by characterisation and are not production

tested.

Table 4. System Characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Units

T_ON

Turn on time (from Enable low to high

transition)

EN = Low to High, VIN = 4.2V, COUT = 10µF,

IOUT ≤ 1mA

210

350

µs

Efficiency (L = 3.3µH, DCR

≤ 100mΩ)

VIN = 3.6V, IOUT = 400mA

VOUT_ripple Ripple voltage, PWM mode

1. Ripple voltage should measured at COUT electrode on good layout PC board and under condition using suggested inductors and capac-

itors.

Note:

All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality

Control) methods.

VIN = 4.2V, IOUT = 10mA to 400mA

5mVp-p

Line_tr

Line transient response

VIN = 600mV perturbance, over VIN range 3.4V

to 5.5V; TRISE = TFALL = 10µs, VOUT = 3.0V,

IOUT = 100mA

mVpk

Load_tr

Load transient response

VIN = 4.2V, VOUT = 3.0V, transients up to

100mA, TRISE = TFALL = 10µs

mVpk

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