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ADP3164

5-Bit Programmable 4-Phase Synchronous Buck Controller

Analog Devices 

ADP3164–SPECIFICATIONS1

(VCC = 12 V, IREF = 150 ␮A, TA = 0؇C to 70؇C, unless otherwise noted.)

Parameter

Symbol Conditions

Min Typ Max Unit

FEEDBACK INPUT

Accuracy

1.1 V Output

1.6 V Output

1.85 V Output

Line Regulation

Input Bias Current

Crowbar Trip Point

Crowbar Reset Point

Crowbar Response Time

REFERENCE

Output Voltage

Output Current

VID INPUTS

Input Low Voltage

Input High Voltage

Input Current

Pull-Up Resistance

Internal Pull-Up Voltage

VFB

∆VFB

IFB

VCROWBAR

tCROWBAR

VCC = 10 V to 14 V

% of Nominal Output

% of Nominal Output

Overvoltage to PWM Going Low

VREF

IREF

VIL(VID)

VIH(VID)

IVID

RVID

VID(X) = 0 V

1.091 1.1 1.109 V

1.587 1.6 1.613 V

1.835 1.85 1.865 V

0.01

%

5

50

nA

115 120 125

%

40

50

60

%

400

ns

2.952 3.00 3.048 V

300

µA

0.8

V

2.0

V

70

90

µA

33

43

kΩ

2.7

3.0 3.3

V

OSCILLATOR

Maximum Frequency2

Frequency Variation

CT Charge Current

ERROR AMPLIFIER

Output Resistance

Transconductance

Output Current

Maximum Output Voltage

Output Disable Threshold

–3 dB Bandwidth

CURRENT SENSE

Threshold Voltage

Input Bias Current

Response Time

fCT(MAX)

fCT

ICT

TA = 25°C, CT = 150 pF

TA = 25°C, CT = 68 pF

TA = 25°C, CT = 47 pF

TA = 25°C, VFB in Regulation

TA = 25°C, VFB = 0 V

RO(ERR)

gm(ERR)

IO(ERR)

VCOMP(MAX)

VCOMP(OFF)

BWERR

FB = 0 V

FB Forced to VOUT – 3%

COMP = Open

VCS(TH)

ICS+, ICS–

tCS

CS+ = VCC,

FB Forced to VOUT – 3%

FB ≤ 750 mV

0.8 V ≤ SHARE ≤ 1 V

CS+ = CS– = VCC

CS+ – (CS–) ≥ 173 mV

to PWM Going Low

4000

kHz

475 575 675

kHz

850 1000 1250 kHz

1100 1300 1500 kHz

260 300 340

µA

40

65

80

µA

1

MΩ

2.0

2.2 2.45 mmho

575

µA

3.0

V

800 875

mV

500

kHz

143 158 173

mV

80

92

108

mV

0

5

mV

1

5

µA

50

ns

CURRENT SHARING

Output Source Current

Output Sink Current

Maximum Output Voltage

POWER GOOD COMPARATOR

Undervoltage Threshold

Overvoltage Threshold

Output Voltage Low

Response Time

VSHARE(MAX) FB Forced to VOUT – 3%

VPWRGD(UV)

VPWRGD(OV)

VOL(PWRGD)

Percent of Nominal Output

Percent of Nominal Output

IPWRGD(SINK) = 1 mA

2

mA

300 400

µA

3.0

V

75

80

85

%

115 120 125

%

375 525

mV

250

ns

PWM OUTPUTS

Output Voltage Low

Output Voltage High

Duty Cycle Limit Per Phase2

VOL(PWM)

VOH(PWM)

DC

IPWM(SINK) = 400 µA

IPWM(SOURCE) = 400 µA

100 500

mV

4.0

5.0

V

25

%

–2–

REV. 0

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