AS1334 データシートの表示（PDF） - austriamicrosystems AG

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AS1334

650mA, Ultra low Ripple Step Down DC/DC Converter

austriamicrosystems AG 

AS1334

Datasheet - Electrical Characteristics

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)

η

Efficiency (L = 3.3µH, DCR ≤ 100mΩ)

lid VOUT_ripple Ripple voltage, PWM mode1

a Line_tr Line transient response

v Load_tr Load transient response

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

IOUT ≤ 1mA

VIN = 3.6V, IOUT = 400mA

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

VIN = 600mV perturbance, over VIN range 3.4V

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

IOUT = 100mA

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

100mA, TRISE = TFALL = 10µs

210 350 µs

96

%

5

mVp-p

50

mVpk

50

mVpk

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

itors.

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

Technicaaml scoAntent Control)methods.

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

Revision 1.09

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