MCP16323 データシートの表示（PDF） - Microchip Technology

部品番号

コンポーネント説明

一致するリスト

MCP16323

18V Input, 3A Output, High Efficiency Synchronous Buck Regulator with Power Good Indication

Microchip Technology 

MCP16323

DC CHARACTERISTICS (CONTINUED)

Electrical Characteristics: Unless otherwise indicated, TA = +25°C, VIN = 12V, VOUT = 3.3V, IOUT = 300 mA,

L = 4.7 µH, COUT = 2x22 µF, CIN = 2x10 µF. Boldface specifications apply over the TJ range of -40°C to +125°C.

Parameters

Sym.

Min.

Typ.

Max.

Units

Conditions

PFM Mode Feedback

Comparator Threshold

Feedback Input Bias

Current

VFB-PFM

IFB

—

VOUT + 1%

—

V

—

100

—

nA

EN Input Characteristics

EN Input Logic High

EN Input Logic Low

EN Input Hysteresis

EN Input Leakage Current

Soft-Start Time

Switching Characteristics

Switching Frequency

Maximum Duty Cycle

VIH

VIL

VEN-HYST

IENLK

tSS

fSW

DCMAX

2.2

—

—

—

—

480

—

3.5

—

-1.5

—

4

0.9

1

95

97

Minimum Duty Cycle

—

7

NMOS Low-Side

Low-Side RDS(ON)

—

120

Switch On Resistance

NMOS High-Side

Switch On Resistance

NMOS High-Side

Switch Current Limit

High-Side

—

180

RDS(ON)

IN(MAX)

3.4

3.8

—

V

0.8

V

—

mV

—

µA VEN = 5V

—

µA VEN = 0V

—

ms

1.1

MHz Open Loop VFB Low

99

% Open Loop VFB Low

Note 1

—

%

—

m

—

m

4.4

A MCP16323

PG Output Characteristics

PG Low-level

Output Voltage

PG High-Level Output

Leakage Current

PG Release Timer

VOUT Undervoltage

Threshold

VOUT Undervoltage

Hysteresis

VOUT Overvoltage Thresh-

old

VOUT Overvoltage

Hysteresis

PGIL

IPGLK

tPG

VOUT-UV

VOUT-UV_HYST

VOUT-OV

VOUT-OV_HYST

—

—

0.01

—

0.5

—

—

10

91% VOUT 93% VOUT

—

95% VOUT

—

1.5% VOUT

—

—

103% VOU

—

T

—

1% VOUT

—

V IPG = -0.3 mA

µA VPG = 5V

ms

Thermal Characteristics

Thermal Shutdown

Die Temperature

TSD

—

170

—

°C

Die Temperature

Hysteresis

TSDHYS

—

10

—

°C

Note 1:

2:

Regulator SW pin is forced off for 240 ns every eight cycles to ensure the BOOST cap is replenished.

As a result of the maximum duty cycle limitations, 3A of output current for 5V output conditions may not

regulate the voltage. External component selection may have an impact on this. A minimum input voltage

of 6.5V is recommended.

DS20002284B-page 4

 2011-2016 Microchip Technology Inc.

Share Link: