MCP1631 datasheet(8/34 Pages) MICROCHIP

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MCP1631/HV/MCP1631V/VHV

DS22063B-page 8

TEMPERATURE SPECIFICATIONS

Line Regulation

ΔVOUT/

(VOUTXΔ

VIN)

-0.3

±0.1

+0.3

%/V

(VOUT(MAX) + VDROPOUT(MAX)) ≤

VIN ≤ 16V Note 2

Load Regulation

ΔVOUT/

VOUT

-2.5

±1.0

+2.5

IL = 1.0 mA to 250 mA, Note 4

Dropout Voltage

Note 2, Note 5

VDROPOUT

—

330

650

IL = 250 mA, VR = 5.0V

—

525

725

IL = 250 mA, VR = 3.3V

Output Delay Time

TDELAY

—

1000

—

µs

VIN = 0V to 6V, VOUT = 90% VR,

RL = 50Ω resistive

Output Noise

—8

—

µV/

(Hz)1/2

IL = 50 mA, f = 1 kHz, COUT =

1µF

Power Supply Ripple Rejection

Ratio

PSRR

—

f = 100 Hz, COUT = 1 µF,

IL = 100 µA,

VINAC =100 mV pk-pk,

CIN = 0 µF, VR =1.2V

Protection Features

Thermal Shutdown

TSHD

—

150

—

°C

Thermal Shutdown Hysteresis

TSHD_HYS

—18

—

°C

Electrical Specifications: Unless otherwise indicated, all limits are specified for: VIN + 3.0V to 5.5V

Parameters

Sym

Min

Typ

Max

Units

Conditions

Temperature Ranges

Operating Junction Temperature

Range

-40

—

+125

°C

Steady State

Storage Temperature Range

-65

—

+150

°C

Maximum Junction Temperature

—

+150

°C

Transient

Package Thermal Resistances

Thermal Resistance, 20L-TSSOP

θJA

—

°C/W

Typical 4 Layer board with

interconnecting vias

Thermal Resistance, 20L-SSOP

θJA

—

89.3

—

°C/W

Typical 4 Layer board with

interconnecting vias

Thermal Resistance, 20L-QFN

θJA

—

°C/W

Typical 4 Layer board with

interconnecting vias

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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