Instrukcja obsługi Microchip MCP16301H
Microchip
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MCP16301H
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2011-2021 Microchip Technology Inc. DS20005004E-page 3
MCP16301/H
Features
• Up to 96% Typical Efficiency
• Input Voltage Range:
- 4.0V to 30V (MCP16301)
- 4.7V to 36V (MCP16301H)
• Output Voltage Range: 2.0V to 15V
• 2% Output Voltage Accuracy
• Passes Automotive AEC-Q100 Reliability Testing
• Integrated N-Channel Buck Switch: 460 m
• Minimum 600 mA Output Current Over All Input
Voltage Range (See Figure 2-6 for Maximum
Output Current vs. VIN):
- Up to 1A output current at 3.3V, 5V and 12V
VOUT, SOT-23 package at +25°C ambient
temperature
• 500 kHz Fixed Frequency
• Adjustable Output Voltage
• Low Device Shutdown Current
• Peak Current Mode Control
• Internal Soft-Start
• Internal Compensation
• Stable with Ceramic Capacitors
• Cycle-by-Cycle Peak Current Limit
• Undervoltage Lockout (UVLO): 3.5V
• Overtemperature Protection
• Available Package: SOT-23-6
Applications
• PIC® Microcontroller and dsPIC
® Digital Signal
Controller Bias Supply
• 24V Industrial Input DC-DC Conversion
• Set-Top Boxes
• DSL Cable Modems
• Automotive
• Wall Cube Regulation
• SLA Battery-Powered Devices
• AC-DC Digital Control Power Source
• Power Meters
• D2 Package Linear Regulator Replacement
- See Figure 5-2
• Consumer
• Medical and Health Care
• Distributed Power Supplies
General Description
The MCP16301/H devices are highly integrated,
high-efficiency, fixed-frequency, step-down DC-DC
converters in a popular 6-pin SOT-23 package, that
operate from input voltage sources up to 36V.
Integrated features include a high-side switch,
fixed-frequency peak current mode control, internal
compensation, peak current limit and overtemperature
protection. Only a few external components are
necessary to develop a complete step-down DC-DC
converter power supply.
High converter efficiency is achieved by integrating the
current-limited, low-resistance, high-speed N-Channel
MOSFET and associated drive circuitry. High
switching frequency minimizes the size of external
filtering components, resulting in a small solution size.
The MCP16301/H devices can supply 600 mA of
continuous current while regulating the output voltage
from 2.0V to 15V. An integrated, high-performance
peak current mode architecture keeps the output
voltage tightly regulated, even during input voltage
steps and output current transient conditions that are
common in power systems.
The EN input is used to turn the device on and off.
While turned off, only a few micro amps of current are
consumed from the input for power shedding and load
distribution applications.
Output voltage is set with an external resistor divider.
The MCP16301/H devices are offered in a
space-saving SOT-23-6 surface mount package.
Package Type
MCP16301/H
6-Lead SOT-23
1
2
34
5
6SW
VIN
EN
BOOST
GND
VFB
High-Voltage Input Integrated Switch Step-Down Regulator
MCP16301/H
DS20005004E-page 4 2011-2021 Microchip Technology Inc.
Typical Applications
VIN
GND
VFB
SW
VIN
6.0V to 36V
VOUT
5.0V @ 600 mA
COUT
2 x 10 µF
CIN
10 µF
L1
22 µH
Boost
52.3 k
10 k
EN
1N4148
40V
Schottky
Diode
CBOOST
100 nF
VIN
GND
VFB
SW
VIN
4.7V to 36V
VOUT
3.3V @ 600 mA
COUT
2 x 10 µF
CIN
10 µF
L1
15 µH
Boost
31.6 k
10 k
EN
1N4148
40V
Schottky
Diode
CBOOST
100 nF
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2011-2021 Microchip Technology Inc. DS20005004E-page 5
MCP16301/H
1.0 ELECTRICAL
CHARACTERISTICS
Absolute Maximum Ratings †
VIN, SW ............................................................... -0.5V to 40V
BOOST – GND.................................................... -0.5V to 46V
BOOST – SW Voltage........................................ -0.5V to 6.0V
VFB Voltage ........................................................ -0.5V to 6.0V
EN Voltage ............................................. -0.5V to (V
IN + 0.3V)
Output Short-Circuit Current ................................. Continuous
Power Dissipation .......................................Internally Limited
Storage Temperature ................................... -65
° °C to +150 C
Ambient Temperature with Power Applied ... -40° °C to +125 C
Operating Junction Temperature.................. -40° °C to +150 C
ESD Protection On All Pins:
HBM.................................................................3 kV
MM ..................................................................200V
† Notice: Stresses above those listed under “Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of
the device at those or any other conditions above those
indicated in the operational sections of this
specification is not intended. Exposure to maximum
rating conditions for extended periods may affect
device reliability.
DC CHARACTERISTICS
Electrical Characteristics: Unless otherwise indicated, TA= +25°C, VIN = VEN = 12V, VBOOST – VSW = 3.3V,
VOUT = 3.3V, IOUT = 100 mA, L = 15 µH, COUT = CIN = 2 x 10 µF X7R ceramic capacitors.
Boldface specifications apply over the TA
range of -40oC to +125oC.
Parameters Sym. Min. Typ. Max. Units Conditions
Input Voltage VIN 4—30 VNote 1 (MCP16301)
4.7 —36 VNote 1 (MCP16301H)
Feedback Voltage VFB 0.784 0.800 0.816 V
Output Voltage Adjust Range VOUT 2.0 —15.0 VNote 2
Feedback Voltage
Line Regulation
VFB/VFB)/VIN — 0.01 0.1 %/V VIN = 12V to 30V
Feedback Input Bias Current IFB -250 ±10 +250 nA
Undervoltage Lockout Start UVLOSTART — 3.5 4.0 V VIN Rising (MCP16301)
— 3.5 4.7 V VIN Rising (MCP16301H)
Undervoltage Lockout Stop UVLO
STOP 2.4 3.0 — V VIN Falling
Undervoltage Lockout
Hysteresis
UVLOHYS — 0.5 — V
Switching Frequency fSW 425 550500 kHz IOUT = 200 mA
Maximum Duty Cycle DCMAX 90 95 — % VIN = 5V; V FB = 0.7V;
IOUT = 100 mA
Minimum Duty Cycle DCMIN — 1 — %
NMOS Switch On Resistance RDS(ON) — 0.46 — VBOOST – VSW = 3.3V
NMOS Switch Current Limit IN(MAX) — 1.3 — A VBOOST – VSW = 3.3V
Quiescent Current IQ— 2 7.5 mA VBOOST = 3.3V; Note 3
Quiescent Current - Shutdown IQ— 7 10 µA VOUT = EN = 0V
Maximum Output Current IOUT 600 — — mA Note 1
EN Input Logic High VIH 1.4 — — V
EN Input Logic Low VIL — — 0.4 V
EN Input Leakage Current I
ENLK — 0.05 1.0 µA VEN = 12V
Note 1: The input voltage should be > output voltage + headroom voltage; higher load currents increase the input
voltage necessary for regulation. See characterization graphs for typical input to output operating voltage
range and UVLOSTART and UVLOSTOP
limits.
2: For VIN < VOUT, VOUT will not remain in regulation.
3: VBOOST supply is derived from VOUT.
Specyfikacje produktu
| Marka: | Microchip |
| Kategoria: | nieskategoryzowany |
| Model: | MCP16301H |
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