ADP5052ACPZ-R7 datasheet(5/40 Pages) AD

5 / 40 page

Data Sheet

ADP5052

Rev. 0 | Page 5 of 40

BUCK REGULATOR SPECIFICATIONS

VIN = 12 V, VVREG = 5.1 V, fSW = 600 kHz for all channels, TJ = −40°C to +125°C for minimum and maximum specifications, and TA = 25°C

for typical specifications, unless otherwise noted.

Table 2.

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

CHANNEL 1 SYNC BUCK REGULATOR

FB1 Pin

Fixed Output Options

VOUT1

0.85

1.60

Fuse trim

Adjustable Feedback Voltage

VFB1

0.800

Feedback Voltage Accuracy

VFB1(DEFAULT)

−0.55

+0.55

TJ = 25°C

−1.25

+1.0

0°C ≤ TJ ≤ 85°C

−1.5

+1.5

−40°C ≤ TJ ≤ +125°C

Feedback Bias Current

IFB1

0.1

µA

Adjustable voltage

SW1 Pin

High-Side Power FET

On Resistance

RDSON(1H)

100

mΩ

Pin-to-pin measurement

Current-Limit Threshold

ITH(ILIM1)

3.50

4.4

5.28

RILIM1 = floating

1.91

2.63

3.08

RILIM1 = 47 kΩ

4.95

6.44

7.48

RILIM1 = 22 kΩ

Minimum On Time

tMIN_ON1

117

155

fSW = 250 kHz to 1.4 MHz

Minimum Off Time

tMIN_OFF1

1/9 × tSW

fSW = 250 kHz to 1.4 MHz

Low-Side Driver, DL1 Pin

Rising Time

tRISING1

CISS = 1.2 nF

Falling Time

tFALLING1

3.4

CISS = 1.2 nF

Sourcing Resistor

tSOURCING1

Ω

Sinking Resistor

tSINKING1

0.95

Ω

Error Amplifier (EA), COMP1 Pin

EA Transconductance

gm1

310

470

620

µS

Soft Start

Soft Start Time

tSS1

2.0

SS12 connected to VREG

Programmable Soft Start Range

2.0

8.0

Hiccup Time

tHICCUP1

7 × tSS1

COUT Discharge Switch On Resistance

RDIS1

250

Ω

CHANNEL 2 SYNC BUCK REGULATOR

FB2 Pin

Fixed Output Options

VOUT2

3.3

5.0

Fuse trim

Adjustable Feedback Voltage

VFB2

0.800

Feedback Voltage Accuracy

VFB2(DEFAULT)

−0.55

+0.55

TJ = 25°C

−1.25

+1.0

0°C ≤ TJ ≤ 85°C

−1.5

+1.5

−40°C ≤ TJ ≤ +125°C

Feedback Bias Current

IFB2

0.1

µA

Adjustable voltage

SW2 Pin

High-Side Power FET

On Resistance

RDSON(2H)

110

mΩ

Pin-to-pin measurement

Current-Limit Threshold

ITH(ILIM2)

3.50

4.4

5.28

RILIM2 = floating

1.91

2.63

3.08

RILIM2 = 47 kΩ

4.95

6.44

7.48

RILIM2 = 22 kΩ

Minimum On Time

tMIN_ON2

117

155

fSW = 250 kHz to 1.4 MHz

Minimum Off Time

tMIN_OFF2

1/9 × tSW

fSW = 250 kHz to 1.4 MHz

Low-Side Driver, DL2 Pin

Rising Time

tRISING2

CISS = 1.2 nF

Falling Time

tFALLING2

3.4

CISS = 1.2 nF

Sourcing Resistor

tSOURCING2

Ω

Sinking Resistor

tSINKING2

0.95

Ω

ADP5052ACPZ-R7 Folha de dados(PDF) 5 Page - Analog Devices

ADP5052ACPZ-R7 Folha de dados(HTML) 5 Page - Analog Devices

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

Folha de dados Download

Ligação URL