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  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP16301H Datasheet

High-Voltage Input Integrated Switch Step-Down Regulator

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MCP16301H pdf
MCP16301/H
High-Voltage Input Integrated Switch Step-Down Regulator
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
• Qualification: AEC-Q100 Rev G, Grade 1
(-40°C to +125°C)
• 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 Compensation
• Stable with Ceramic Capacitors
• Internal Soft-Start
• 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
operates 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. Minimal 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
BOOST 1
GND 2
VFB 3
6 SW
5 VIN
4 EN
2011-2015 Microchip Technology Inc.
DS20005004D-page 1



  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP16301H Datasheet

High-Voltage Input Integrated Switch Step-Down Regulator

No Preview Available !

MCP16301H pdf
MCP16301/H
Typical Applications
VIN
4.7V to 36V
CIN
10 µF
VIN
6.0V to 36V
CIN
10 µF
Boost
SW
VIN
EN
VFB
GND
1N4148
C10B0OOnFST15L1µH
40V
Schottky
Diode
VOUT
3.3V @ 600 mA
31.6 k
COUT
2 x 10 µF
10 k
Boost
SW
VIN
EN
VFB
GND
1N4148
CBOOST
100 nF
L1
22 µH
40V
Schottky
Diode
VOUT
5.0V @ 600 mA
52.3 k
COUT
2 x 10 µF
10 k
100
90
80
70
60
50
40
30
20
10
0
10
VOUT = 5.0V
VOUT = 3.3V
VIN = 12V
100
IOUT (mA)
1000
DS20005004D-page 2
2011-2015 Microchip Technology Inc.



  Microchip Technology Semiconductor Electronic Components Datasheet  

MCP16301H Datasheet

High-Voltage Input Integrated Switch Step-Down Regulator

No Preview Available !

MCP16301H pdf
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 (VIN + 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 =
Boldface specifications apply over the TA range
oCfIN-4=0o2Cxto10+1µ2F5XoC7R.
ceramic
capacitors.
Parameters
Sym.
Min.
Typ.
Max. Units
Conditions
Input Voltage
VIN 4 30 V Note 1 (MCP16301)
4.7
36 V Note 1 (MCP16301H)
Feedback Voltage
Output Voltage Adjust Range
Feedback Voltage
Line Regulation
VFB
VOUT
VFB/VFB)/VIN
0.784
2.0
0.800
0.01
0.816
15.0
0.1
V
V Note 2
%/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
UVLOSTOP
2.4
3.0
— V VIN Falling
Undervoltage Lockout
Hysteresis
UVLOHYS
0.5
—V
Switching Frequency
fSW
425 500
550 kHz IOUT = 200 mA
Maximum Duty Cycle
DCMAX
90 95
— % VIN = 5V; VFB = 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
IENLK
— 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.
2011-2015 Microchip Technology Inc.
DS20005004D-page 3




Part Number MCP16301H
Description High-Voltage Input Integrated Switch Step-Down Regulator
Maker Microchip
Total Page 30 Pages
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