MCP16502 datasheet(8/86 Pages) MICROCHIP

8 / 86 page

MCP16502

DS20006275D-page 8

 2019-2022 Microchip Technology Inc. and its subsidiaries

Current Limit Frequency

Foldback VOUT1 Threshold

VTH_FFB1

—

500

—

Hiccup Mode Short-Circuit

Protection Wait Time

tHICCUP

—

3x Soft

Start

Time

—

Low-Side Negative Peak

Current Limit (FPWM)

ILIM_NEG1

-1.4

-1

-0.8

Zero Current Detection

Threshold

IZCD1

050

110

Active

Discharge Resistance

RDISCH_OUT1

—25—

Ω

DISCH = 1, enabled when regulator is

disabled

Buck2, Buck3, Buck4

Input Operating Voltage

Range

VPVINx

2.7

—

5.5

Output Voltage Range

VOUTx

0.6

—

1.85

25 mV steps

Output Voltage Step

Vstep

—25—

PVINx Shutdown Current

IPVINx_SHDN

—0.05

µA

Regulator disabled, PVINx = 5V

Operational Quiescent

Current, Auto-PFM (Note 2)

IQOP_PFMx

—45—

µA

IOUTx = 0 mA, Auto-PFM,

PWRHLD = LPM = 1, HPM = 0,

ΔIQ for one Buck activated

Output Voltage Accuracy,

FPWM

ACC_OUTPWMx

-1

—

IOUTx = 0 mA, 0.9V ≤ VOUTx ≤ 1.3V

-1.5

—

+1.5

IOUTx =0 mA, VOUTx < 0.9V or

VOUTx > 1.3V

Output Voltage Accuracy,

Auto-PFM

ACC_OUTPFMx

-1

—

IOUTx = 0 mA, 0.9V ≤ VOUTx ≤ 1.3V

-1.5

—

+1.5

IOUTx =0 mA, VOUTx < 0.9V or

VOUTx > 1.3V

Output Voltage Line

Regulation (Note 2)

LINE_REGPWMx

—0.03—

IOUT1 =0 mA, FPWM,

VIN =PVIN1 =SVIN=3.6V to 5.5V

LINE_REGPFMx

—0.07—

IOUT1 = 0 mA, Auto-PFM,

VIN =PVIN1 =SVIN=3.6V to 5.5V

Output Voltage Load

Regulation (Note 2)

LOAD_REGPWMx

—0.3

—

IOUTx = 0A to 1A, FPWM

LOAD_REGPFMx

—0.5

—

IOUTx = 0A to 1A, Auto-PFM

Switching Frequency

fsw

1.8

2.2

MHz

FPWM, FSD[1:0] = 00, 01

Switching Frequency

Displacement

FSD_10

—

-16.5

—

FPWM, FSD[1:0] = 10

FSD_11

—

16.5

—

FPWM, FSD[1:0] = 11

Maximum Duty Cycle

DMAX

100

—

Functionality test

Minimum ON Time

TON_MINx

—35—

FPWM

High-Side Switch

On-Resistance

RDSonPx

—

140

160

mΩ

PVINx = SVIN = 3.6V

Low-Side Switch

On-Resistance

RDSonNx

—

120

140

mΩ

PVINx = SVIN = 3.6V

POK (Power OK) Threshold

POK_THx

92.5

OUTx rising, % of VOUTx(NOM)

POK Hysteresis

POK_HYSx

—

OUTx falling, % of VOUTx(NOM)

AC/DC CHARACTERISTICS (CONTINUED)

Electrical Specifications: Unless otherwise specified: TA =TJ =+25°C; VIN =SVIN= PVINx = LVIN =5V; L1 =L2=L3 =L4 = 2.2 µH;

COUT1, COUT2,, COUT3, COUT4 =22µF. Boldface type applies for junction temperatures TJ of -40°C to +125°C.

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

Note 1:

Maximum limit for TJ = -40°C to +105°C based on characterization data.

Not production tested.

Typical value from bench characterization, maximum value production tested.

Input filters on the SDA and SCL inputs suppress noise spikes of less than 50 ns.

MCP16502 Datasheet(PDF) 8 Page - Microchip Technology

MCP16502 Datasheet(HTML) 8 Page - Microchip Technology

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 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86

Datasheet Download

Link URL