MCP1631HVT-ESLASHSS datasheet(6/34 Pages) MICROCHIP

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MCP1631/HV/MCP1631V/VHV

DS22063B-page 6

External Reference Input

Reference Voltage Input

VREF

0—

AVDD

The reference input is capable of

rail-to-rail operation.

Internal Driver)

RDSON P-channel

RDSon_P

—7.2

RDSON N-channel

RDSon_N

—3.8

VEXT Rise Time

TRISE

—2.5

CL = 100 pF

Typical for VIN =5V (Note 1)

VEXT Fall Time

TFALL

—2.7

CL = 100 pF

Typical for VIN =5V (Note 1)

Error Amplifier (A1)

Input Offset Voltage

VOS

-5

-0.6

A1 Input Bias Current

IBIAS

—0.05

µA

Error Amplifier PSRR

PSRR

—

85.4

—

VIN = 3.0V to 5.0V, VCM =1.2V

Common Mode Input Range

VCM

GND - 0.3

—

VIN

Common Mode Rejection Ratio

—

VIN =5V, VCM = 0V to 2.5V

Open-loop Voltage Gain

AVOL

—

RL =5kΩ to VIN/2,

100 mV < VEAOUT < VIN - 100 mV,

VCM =1.2V

Low-level Output

VOL

—

GND + 65

RL = 5 kΩ to VIN/2

Gain Bandwidth Product

GBWP

—

3.5

—

MHz

VIN =5V

Error Amplifier Sink Current

ISINK

412

—

VIN =5V, VREF =1.2V,

VFB =1.4V, VCOMP =2.0V

Error Amplifier Source Current

ISOURCE

-2

-9.8

—

VIN =5V, VREF =1.2V,

VFB =1.0V, VCOMP =2.0V,

Absolute Value

Current Sense (CS) Amplifier (A2)

Input Offset Voltage

VOS

-3.0

1.2

+3.0

CS Input Bias Current

IBIAS

—0.13

µA

CS Amplifier PSRR

PSRR

—

VIN = 3.0V to 5.0V, VCM = 0.12V,

GAIN = 10

Closed-loop Voltage Gain

A2VCL

—10

—

V/V

RL =5kΩ to VIN/2,

100 mV < VOUT < VIN - 100 mV,

VCM = +0.12V

Low-level Output

VOL

GND + 50

RL = 5 kΩ to VIN/2

CS Sink Current

ISINK

517.7

—

CS Amplifier Source Current

ISOURCE

-5

-19.5

—

Voltage Sense (VS) Amplifier (A3)

Input Offset Voltage

VOS

-5

0.9

VS Input Bias Current

IBIAS

—0.001

µA

DC CHARACTERISTICS (CONTINUED)

Electrical Specifications: Unless otherwise noted, VIN = 3.0V to 5.5V, FOSC = 1 MHz with 10% Duty Cycle, CIN = 0.1 µF,

VDD for typical values = 5.0V, TA for typical values = +25°C, TA = -40°C to +125°C for all minimum and maximums.

Parameters

Sym

Min

Typ

Max

Units

Conditions

Note 1:

External Oscillator Input (OSCIN) rise and fall times between 10 ns and 10 µs were determined during device

characterization testing. Signal levels between 0.8V and 2.0V with rise and fall times measured between 10% and 90%

of maximum and minimum values. Not production tested. Additional timing specifications were fully characterized and

specified that are not production tested.

The minimum VIN must meet two conditions: VIN ≥ 3.5V and VIN ≥ (VOUT(MAX) + VDROPOUT(MAX)).

TCVOUT = (VOUT-HIGH - VOUT-LOW) *106 / (VR * ΔTemperature), VOUT-HIGH = highest voltage measured over the

temperature range. VOUT-LOW = lowest voltage measured over the temperature range.

Load regulation is measured at a constant junction temperature using low duty cycle pulse testing. Changes in output

voltage due to heating effects are determined using thermal regulation specification TCVOUT.

Dropout voltage is defined as the input to output differential at which the output voltage drops 2% below its measured

value with an applied input voltage of VOUT(MAX) + VDROPOUT(MAX) or 3.5V, whichever is greater.

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