ATSAM4LS4BA-AU 查看數據表（PDF） - Atmel Corporation

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ATSAM4LS4BA-AU

ATSAM ARM-based Flash MCU

Atmel Corporation 

ATSAM4L8/L4/L2

Table 9-39. VREG Electrical Characteristics in Switching mode

Symbol

IOUT

Parameter

DC output current(1)

Output DC load regulation(1)

Transient load regulation

Output DC regulation(1)

IQ

PEFF

Quescient current(1)

Power efficiency(1)

Conditions

VVDDCORE > 1.65V

IOUT = 0 to 50mA,

VVDDIN = 3 V

IOUT = 50 mA,

VVDDIN = 2V to 3.6V

VVDDIN = 2V, IOUT = 0 mA

VVDDIN > 2.2V, IOUT = 0 mA

IOUT = 5mA, 50mA

Reference power not included

Min

Typ

-136 -101

-20

38

97

186

97

111

82.7 88.3

1.

These values are based on characterization. These values are not covered by test limits in production.

Table 9-40. Decoupling Requirements in Switching Mode

Symbol Parameter

Technology

CIN1

Input regulator capacitor 1

CIN2

Input regulator capacitor 2

CIN3

Input regulator capacitor 3

COUT1

Output regulator capacitor 1

COUT2

Output regulator capacitor 2

LEXT

External inductance

RDCLEXT

Serial resistance of LEXT

ISATLEXT Saturation current of LEXT

Note: 1. Refer to Section 6. on page 46.

X7R MLCC

X7R MLCC (ex : GRM31CR71A475)

(ex: Murata LQH3NPN220MJ0)

Max

Units

55

mA

-82

mV

99

mV

546

µA

147

95

%

Typ Units

33

nF

100

10

µF

100

nF

4.7

µF

22

µH

0.7

Ω

300

mA

42023GS–SAM–03/2014

130

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