DA9211 datasheet(12/74 Pages) DIALOG

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DA9211 and DA9212

Datasheet

Company confidential

Data sheet

Version <3.0>

<07-Jan-2015>

CFR0011-120-00 Rev 3

12 of 74

11. Electrical characteristics

Table 6: Buck Converters Characteristics

Unless otherwise noted, the following is valid for TA = -40 to +85 ºC, VDD = 2.8 V to 5.5 V, COUT = 22 μF /phase,

local sensing

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDD

Supply voltage

VDD_x = VSYS

2.8

5.5

COUT

Output capacitance (per

phase)

Including voltage and

temperature coefficient

28.6

µF

ESRCOUT

Equivalent series

resistance (per phase)

f > 100 kHz

mΩ

LPHASE047

Inductance (per phase)

Including current and

temperature dependence

0.23

0.47

0.62

µH

LPHASE022

Inductance (per phase)

Including current and

temperature dependence

0.11

0.22

0.29

µH

DCRLPHASE

Inductor resistance

100

mΩ

VBUCK

Buck output voltage

(Note 1)

IO = 0 to IO_MAX

0.3

1.57

VOACC

Output voltage accuracy

PWM mode

Incl. static line/load reg

and voltage ripple

VBUCK ≥ 1 V

-2.0

+2.0

Incl. static line/load reg

and voltage ripple

VBUCK < 1 V

±20

VBUCK = 1 V

VDD = 3.8 V

no load

-1.0

+1.0

VBUCK = 1 V

VDD = 3.8 V

no load

TA = 27 ºC

-0.5

+0.5

VTR_LOAD

Load regulation transient

voltage

IO = 0 to 5 A, 10 A/µs

4-phase operation, PWM

VBUCK ≥ 1 V

0.6 V

≤ VBUCK < 1 V

-3

-30 mV

Note 2

+30 mV

IO = 0 to 5 A, 10 A/µs

phase shedding, PWM

VDD ≤ 4.2 V

VBUCK ≥ 1 V

0.6 V

≤ VBUCK < 1 V

-3.5

-35 mV

Note 2

+3.5

+35 mV

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