AS3607 datasheet(18/71 Pages) AMSCO

18 / 71 page

www.austriamicrosystems.com

Revision 1.03

17 - 70

AS3606 AS3607 2v2

Data Sheet - D e t a i l e d D e s c r i p t i o n - P o w e r M anage ment F uncti ons

DVM (Dynamic Voltage Management). To minimize the over-/undershoot during a change of the output voltage, the DVM can be enabled.

With DVM the output voltage will ramp up/down with a selectable slope after the new value was written to the registers. Without DVM the slew

rate of the output voltage is only determined by external components like the coil and load capacitor as well as the load current.

Fast Regulation Mode. This mode can be used to react faster on sudden load changes and thus minimize the over-/undershoot of the output

voltage. FRM needs an 22uF output capacitor instead the 10uF one to guarantee the stability of the regulator.

Low Frequency Operation. Especially for very low load conditions, e.g. during a sleep mode of a processor, the switching frequency can be

reduced to achieve a higher efficiency.

100% PMOS ON Mode for Low Dropout Regulation. For low input to output voltage difference the DCDC converter can use 100% duty

cycle for the PMOS transistor, which is than in LDO mode.

8.2.2 Parameter

VSUP=3.6, TA= 25ºC, unless otherwise specified.

Table 5. DCDC Parameter

Symbol

Parameter

Condition

Min

Typ

Max

Unit

VIN

Input voltage

VSUPx

2.7

5.5

VOUT

Regulated output voltage

0.6125

3.35

VOUT_tol

Output voltage tolerance

minimum ±50mV

-3%

Iload

Maximum Load current

600

700

ILIMIT

Current limit

1000

RPSW

P-Switch ON resistance

VSUPx=3.0V

0.5

0.7

RNSW

N-Switch ON resistance

VSUPx=3.0V

0.5

0.7

fSW

Switching frequency

depending on DCDC_Cntr settings

1/2

MHz

fSWsc

Switching frequency

in shortcut case

0.6

MHz

Cout

Output capacitor

Ceramic, ±10% tolerance

µF

Inductor

±10% tolerance

2.2

µH

ηeff

Efficiency

Iout=150mA, Vout=3.0V

IVDD

Current consumption

Operating current without load

Shutdown current

0.1

µA

tMIN_ON

Minimum on time

tMIN_OFF

Minimum off time

VLineReg

Line regulation

Static

Transient; Slope: tr=10µs, 100mV step, 200mA

load

VLoadReg

Load regulation

Static

Transient; Slope: tr=10µs,

100mA step

AS3607 Datasheet(PDF) 18 Page - ams AG

AS3607 Datasheet(HTML) 18 Page - ams AG

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71

Datasheet Download

Link URL