AS1339 datasheet(7/25 Pages) AMSCO

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AS1339

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

Start-Up Time

From PA_EN switch from 0V to 1.7V,

VOUT = 3.4V, ILOAD = 0mA, within 50mV

regulation error

100

150

µs

Regulation Time; Rise Time

VOUT from 0.8V to 3.4V, RLOAD = 8

Ω,

within 50mV regulation error

Regulation Time; Fall Time

VOUT from 3.4V to 0.8V, RLOAD = 8

Ω,

within 50mV regulation error

LDO

Start-Up Time

IOUT=10mA, within 100mV of VOUT

µs

Shut-Down Time

IOUT=0mA, within 100mV of GND

100

Line Regulation

VIN = 4V to 3.5V; IOUT = 10mA;

Load Regulation

IOUT stepped from 50µA to 10mA

Ripple Rejection

IOUT = 4mA, VIN = 3.2V, f = 100kHz

IOUT = 4mA, VIN = 3.2V, f = 2MHz

Output Noise

10Hz to 100kHz, IOUT = 10mA

100

µVRMS

1. The relative linearity is defined as the difference of the minimum to the maximum gain over the entire REFIN

range.

2. The absolute linearity is defined as the actual gain error (AE) of every applied VREFIN voltage between 0.32V

and 1.4V.

3. The ripple voltage should measured at COUT electrode on good layout PC board and under condition using sug-

gested inductors and capacitors.

4. For dynamic change in VOUT (Line transient response) when VIN drops 500mV from 4V (see Figure 48 on page

15); Slew rate= 40mV/µs.

5. VRIPPLE = 200mVpp; TA = +25°C; CIN1, CIN2 removed; PA_EN = 0V;

6. VIN = 3.2V; TA = +25°C; PA_EN = 3.2V;

Table 5. External Components used for Characterisation

Name

Part Number

Value

Rating

Type

Size

Manufacturer

CIN1

GRM21BR60J106KE01

10µF

6.3V

X5R

0805

Murata

www.murata.com

CIN2

GRM155R61A105KE15

1µF

10V

X5R

0402

COUT

C0603C475K8PAC7867

4.7µF

10V

X5R

0603

KEMET

www.kemet.com

CLDO1, CLDO2

C0402C104K4RAC

100nF

16V

X7R

0402

MLP2520S3R3S

3.3µH

110m

2.2x2.0x1.4mm

TDK

www.coilcraft.com

Table 4. System Characteristics (Continued)

Symbol

Parameter

Condition

Min

Typ

Max

Unit

OUT

REFIN

---------------------------------

–

⎝⎠

⎛⎞

100

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