AS1332 datasheet(5/19 Pages) AMSCO

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AS1332

Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s

System Characteristics

TA = 25ºC; PVIN = VDD = EN = 3.6V, unless otherwise noted. The following parameters are verfied by characterisation

and are not production tested.

Table 4. System Characteristics

Symbol

Parameter

Conditions

Min

Typ Max

Unit

Control Inputs

TRESP

Time for VOUT to rise from

1.3V to 3.16V

VIN = 4.2V, COUT = 4.7µF,

L = 3.3µH, RLOAD = 5Ω

µs

Time for VOUT to fall from

3.16V to 1.3V

VIN = 4.2V, COUT = 4.7µF,

L = 3.3µH, RLOAD = 10Ω

CCON

VCON Input Capacitance

VCON = 1V, Test frequency = 100 kHz

Linearity

Linearity in Control

Range 0.556V to 1.208V

VIN = 3.6V,

Monotonic in nature

-3

T_ON

Turn-On Time

(time for output to reach 3.16V from

enable low to high transition)

EN = Low to High, VIN = 4.2V,

VOUT = 3.16V, COUT = 4.7µF, IOUT ≤ 1mA

210

750

µs

Performance Parameters

Efficiency

(L = 3.3µH, DCR

≤ 100mΩ)

VIN = 3.6V, VOUT = 1.3V, IOUT = 90mA

VIN = 3.6V, VOUT = 3.16V, 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 sug-

gested inductors and capacitors.

VIN = 3V to 4.5V, VOUT = 1.3V,

IOUT = 10mA to 400mA

mVp

-p

Line_tr

Line transient response

VIN = 600mV perturbance, over Vin range

3V to 5.5V; TRISE = TFALL = 10µs,

VOUT = 1.3V, IOUT = 100mA

mVp

Load_tr

Load transient response

VIN = 3.1/3.6/4.5V, VOUT = 1.3V, transients

up to 100mA, TRISE = TFALL = 10µs

mVp

PSRR

VIN = 3.6V, VOUT = 1.3V,

IOUT = 100mA

sine wave perturbation frequency = 10kHz,

amplitude = 100mVp-p

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