Datasheet > AS1339

AS1339

更新时间： 2024-01-03 18:48:28

品牌	Logo	应用领域
艾迈斯 - AMSCO		/
页数	文件大小	规格书
25页	4034K
描述
650mA RF Step-Down DC-DC for PA, with two LDOs

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AS1339 技术参数

生命周期：	Active	Reach Compliance Code：	unknown
风险等级：	5.75	Is Samacsys：	N
Base Number Matches：	1

AS1339 数据手册

AS1339

Datasheet - Electrical Characteristics

Table 4. System Characteristics (Continued)

Symbol

Parameter

Condition

Min

Typ

Max

Unit

From PA_EN switch from 0V to 1.7V,

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

regulation error

Start-Up Time

100

150

VOUT from 0.8V to 3.4V, RLOAD = 8Ω,

within 50mV regulation error

µs

Regulation Time; Rise Time

Regulation Time; Fall Time

VOUT from 3.4V to 0.8V, RLOAD = 8Ω,

within 50mV regulation error

LDO

Start-Up Time

IOUT=10mA, within 100mV of VOUT

IOUT=0mA, within 100mV of GND

µs

Shut-Down Time

100

Line Regulation⁴

Load Regulation

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

IOUT stepped from 50µA to 10mA

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

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

Ripple Rejection⁵

Output Noise⁶

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.

V_OUT

⎛

⎝

⎞

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

AE =

– 1 × 100

⎠

2, 5 × V_REFIN

3. The ripple voltage should measured at C_OUTelectrode 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

CIN1

Part Number

Value

10µF

1µF

Rating

6.3V

10V

Type

X5R

X7R

Size

0805

0402

0603

0402

Manufacturer

Murata

www.murata.com

GRM21BR60J106KE01

GRM155R61A105KE15

C0603C475K8PAC7867

C0402C104K4RAC

CIN2

KEMET

www.kemet.com

COUT

4.7µF

100nF

10V

CLDO1, CLDO2

16V

TDK

www.coilcraft.com

MLP2520S3R3S

3.3µH

110mΩ 2.2x2.0x1.4mm

www.austriamicrosystems.com

Revision 1.04

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1...4 5 678 9 10...25

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