AD5753 datasheet(7/72 Pages) AD

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Data Sheet

AD5753

Rev. 0 | Page 7 of 72

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

VLDO OUTPUT

Output Voltage

3.3

Output Voltage TC2

ppm/°C

Output Voltage Accuracy

−2

Externally Available Current

Short-Circuit Current

Load Regulation

0.8

mV/mA

Capacitive Load

0.1

µF

Recommended operation

DC-TO-DC

Start-Up Time

1.25

Switch

Peak Current Limit2

150

400

User programmable in 50 mA steps via the

DCDC_CONFIG2 register

Oscillator

Oscillator Frequency (fSW)

500

kHz

Minimum Duty Cycle

Current Output DPC Mode

Current output dynamic power control mode

VDPC+ and VDPC− Voltage

Range

±4.95

±27

Assuming sufficient supply margin between

AVDD1 and VDPC+, and AVSS and VDPC−; see the

Power Dissipation Control section for further

details; maximum operating range of

|VDPC+ to VDPC−| = 50 V

VDPC+ and VDPC− Headroom

2.3

2.5

Typical voltage headroom between VIOUT and

VDPC+ or VDPC−; only applicable when dc-to-dc

converter is in regulation, that is, when the load

is sufficiently high

Current Output PPC Mode

Programmable power control mode

VDPC+ and VDPC− Voltage

Range

±5

±25.677

Assuming sufficient supply margin between

(AVDD1 and VDPC+) and (AVSS and VDPC−); see the

Power Dissipation Control section for further

details; maximum operating range of |VDPC+ to

VDPC−| = 50 V

VDPC+ and VDPC− Voltage

Accuracy

−500

+500

Only applicable when dc-to-dc is operating in

regulation, that is, when the load is sufficiently

high

Voltage Output DPC Mode

Voltage output dynamic power control mode

VDPC+ and VDPC− Voltage

Range

±5

±15

±25

5 V = −VSENSE(MIN) + 15 V; 25 V = −VSENSE(MAX) + 15 V;

where VSENSE(MIN) = −10 V and VSENSE(MAX) = +10 V;

assuming sufficient supply margin between AVDD1

and VDPC+, and AVSS and VDPC−; see the Power

Dissipation Control section for further details;

maximum operating range of |VDPC+ to VDPC−| = 50 V

VDPC+ and VDPC− Voltage

Accuracy

−250

+250

Only applicable when dc-to-dc is operating in

regulation, that is, when the is load sufficiently

high

VIOUT LINE PROTECTOR

On Resistance, RON

Ω

TA = 25°C

Overvoltage Response Time,

tRESPONSE

250

Overvoltage Leakage Current

±100

µA

Line protector fault detect block sinks current

for a positive fault and sources current for a

negative fault

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