DA9232 datasheet(13/50 Pages) DIALOG

номер детали	DA9232

подробное описание детали	High Efficiency, Ultra-Low Quiescent Current and Ultra-Low Output Ripple Buck Regulator

PDF	50 Pages

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производитель	DIALOG [Dialog Semiconductor]

домашняя страница	http://www.dialog-semiconductor.com/

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DA9232

High Efficiency, Ultra-Low Quiescent Current and Ultra-

Low Output Ripple Buck Regulator

NDA Confidential

Datasheet

Revision 2.3

23-Apr-2018

CFR0011-120-00 Rev 5

13 of 50

Electrical Characteristics

VDD = VDD_SYS = 3.6 V, TA= -40

C to 85C. Typical values are at TA = 25°C (unless otherwise

noted).

Table 5: Input Current

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Electrical performance

IQ_BUCK_ON_

NO_LD

Buck no load quiescent

current

-40 °C < TA < 85 °C

Buck enabled and regulating,

no load

2.5 V

≤ VVDD_SYS ≤ 5.5 V

VBUCK = 1.8 V

0.75

3.5

μA

Table 6: Buck Output

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Electrical performance

RON_PMOS

On resistance of PMOS

pass device

VVDD_SYS = 3.6 V

IOUT = 50 mA

600

800

RON_NMOS

On resistance of NMOS

pass device

VVDD_SYS = 3.6 V

IOUT = 50 mA

300

450

RSYS_DHCG

MOSFET on-resistance

for buck discharge

VVDD_SYS = 3.6 V

IOUT = -10 mA into VOUT pin

tSTART

Buck start-up time

VVDD_SYS = 3.6 V

VBUCK = 1.8 V

IOUT = 0 A from BUCK_EN =

1 to switching start

ILIM_SW_PMOS

SW current limit PMOS

VVDD_SYS = 3.6 V

VBUCK = 1.8 V

550

fSW

Switching frequency in

continuous conduction

mode

1.5

MHz

ILIM_PMOS_SOFT

START

PMOS switch current

limit during soft-start

Current limit is reduced

during soft-start

250

VOUT_VBUCK_SN

Buck output voltage

range

Programmable range, 50 mV

steps

0.6

1.9

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