Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Fiche De Données

1125

SAM4S Series [DATASHEET]

Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14

Notes: 1. A 4.7µF or higher ceramic capacitor must be connected between VDDIN and the closest GND pin of the device.

This large decoupling capacitor is mandatory to reduce startup current, improving transient response and noise rejection.

2. To ensure stability, an external 2.2µF output capacitor, CD

OUT

 must be connected between the VDDOUT and the closest 

GND pin of the device. The ESR (Equivalent Series Resistance) of the capacitor must be in the range 0.1 to 10 ohms.

Solid tantalum, and multilayer ceramic capacitors are all suitable as output capacitor. 

A 100nF bypass capacitor between VDDOUT and the closest GND pin of the device helps decreasing output noise and 

improves the load transient response.

3. Defined as the current needed to charge external bypass/decoupling capacitor network.
4. At power-up VDDIO needs to reach 0.6V before VDDIN reaches 1.0V
5. VDDIO voltage needs to be equal or below to (VDDIN voltage + 0.5V)

V

VDDIN

DC Input Voltage Range

1.6

3.3

3.6

V

V

VDDOUT

DC Output Voltage

Normal Mode
Standby Mode

—

1.2

0

—

V

V

ACCURACY

Output Voltage Accuracy

I

Load

 = 0.8 mA to 80 mA(after trimming)

-3

3

%

I

LOAD

I

LOAD-START

Maximum DC Output 

Current
Maximum Peak Current 

during Startup

V

VDDIN 

> 1.8V

V

VDDIN 

≤ 1.8V

—

—

80
40

mA

See Note

.

—

—

400

mA

D

DROPOUT

Dropout Voltage

V

VDDIN 

= 1.6V, I

Load

 = Max

—

400

—

mV

V

LINE

V

LINE-TR

Line Regulation

Transient Line Regulation

V

VDDIN

 from 2.7V to 3.6V; I

Load 

MAX

V

VDDIN

 from 2.7V to 3.6V; tr = tf = 5µs; I

Load 

Max

—

10

50

30

150

mV

V

LOAD

V

LOAD-TR

Load Regulation

Transient Load Regulation

V

VDDIN 

≥ 1.8V;

I

Load 

= 10% to 90% MAX

V

VDDIN 

≥ 1.8V;

I

Load 

= 10% to 90% MAX

tr = tf = 5 µs

—

20

50

40

150

mV

I

Q

Quiescent Current 

Normal Mode;
@ I

Load 

= 0 mA

@ I

Load 

= 80 mA

Standby Mode

—

5

500

1

µA

CD

IN

Input Decoupling Capacitor

Cf. External Capacitor Requirements 

—

4.7

µF

CD

OUT

Output Decoupling 

Capacitor

Cf. External Capacitor Requirements 

ESR

1.85

0.1

2.2

5.9

10

µF

Ohm

t

ON

Turn-on Time

CD

OUT

= 2.2µF, V

VDDOUT 

reaches 1.2V (+/- 3%)

—

300

—

µs

t

OFF

Turn-off Time

CD

OUT

= 2.2µF

—

—

40

ms