MCP1603RD-TNY Microchip Technology, MCP1603RD-TNY Datasheet

Tiny Reference Design Board

MCP1603RD-TNY

Manufacturer Part Number
MCP1603RD-TNY
Description
Tiny Reference Design Board
Manufacturer
Microchip Technology
Type
DC/DC Switching Converters, Regulators & Controllersr
Datasheets

Specifications of MCP1603RD-TNY

Silicon Manufacturer
Microchip
Application Sub Type
Buck Regulator
Kit Application Type
Power Management - Voltage Regulator
Silicon Core Number
MCP1603
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
0.8V, 1.2V, 1.8V, 2.5V, or 3.3V
Current - Output
500mA
Voltage - Input
2.7 ~ 5.5V
Regulator Topology
Buck
Frequency - Switching
2MHz
Board Type
Fully Populated
Utilized Ic / Part
MCP1603
Input Voltage
2.7 V to 5.5 V
Output Voltage
1.8 V to 3.3 V
Product
Power Management Modules
Kit Contents
Board
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
MCP1603
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
• Over 90% Typical Efficiency
• Output Current Up To 500 mA
• Low Quiescent Current = 45 µA, typical
• Low Shutdown Current = 0.1 µA, typical
• Adjustable Output Voltage:
• Fixed Output Voltage:
• 2.0 MHz Fixed-Frequency PWM (Heavy Load)
• Automatic PWM to PFM Mode Transition
• 100% Duty Cycle Operation
• Internally Compensated
• Undervoltage Lockout (UVLO)
• Overtemperature Protection
• Space Saving Packages:
Applications
• Cellular Telephones
• Portable Computers
• Organizers / PDAs
• USB Powered Devices
• Digital Cameras
• Portable Equipment
• +5V or +3.3V Distributed Systems
Package Types
© 2007 Microchip Technology Inc.
- 0.8V to 4.5V
- 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V
- 5-Lead TSOT
- 8-Lead 2X3 DFN
SHDN
GND
V
IN
2
3
1
2.0 MHz, 500 mA Synchronous Buck Regulator
MCP1603
5
4
L
V
5-Lead TSOT
X
FB
/V
OUT
SHDN
GND
L
X
1
2
3
MCP1603L
5
4
General Description
The MCP1603 is a high efficient, fully integrated
500 mA synchronous buck regulator whose 2.7V to
5.5V input voltage range makes it ideally suited for
applications powered from 1-cell Li-Ion or 2-cell/3-cell
NiMH/NiCd batteries.
At heavy loads, the MCP1603 operates in the 2.0 MHz
fixed frequency PWM mode which provides a low
noise, low output ripple, small-size solution. When the
load is reduced to light levels, the MCP1603
automatically changes operation to a PFM mode to
minimize quiescent current draw from the battery. No
intervention is necessary for a smooth transition from
one mode to another. These two modes of operation
allow the MCP1603 to achieve the highest efficiency
over the entire operating current range.
The MCP1603 is available with either an adjustable or
fixed output voltage. The available fixed output voltage
options are 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. When a
fixed option is used, only three additional small external
components are needed to form a complete solution.
Couple this with the low profile, small-foot print
packages and the entire system solution is achieved
with minimal size.
Additional
overtemperature, and overcurrent protection.
V
V
FB
IN
/V
OUT
protection
MCP1603
V
FB
SHDN
/V
OUT
NC
L
X
8-Lead 2x3 DFN
features
1
2
3
4
include:
DS22042A-page 1
8
7
6
5
GND
V
NC
NC
UVLO,
IN

Related parts for MCP1603RD-TNY

MCP1603RD-TNY Summary of contents

Page 1

... SHDN OUT MCP1603 © 2007 Microchip Technology Inc. MCP1603 General Description The MCP1603 is a high efficient, fully integrated 500 mA synchronous buck regulator whose 2.7V to 5.5V input voltage range makes it ideally suited for applications powered from 1-cell Li-Ion or 2-cell/3-cell NiMH/NiCd batteries. At heavy loads, the MCP1603 operates in the 2.0 MHz fixed frequency PWM mode which provides a low noise, low output ripple, small-size solution ...

Page 2

... MCP1603 Typical Application Circuit V IN 2. 4.7 µF 100 V 95 OUT 3. 0.1 DS22042A-page 4.7 µ SHDN FB GND = 1. 4. 100 Output Current (mA) V OUT 1.8V @ 500 mA C OUT 4.7 µ 2.7V IN 1000 © 2007 Microchip Technology Inc. ...

Page 3

... UVLO Thermal Shutdown UVLO Slope Comp OSC PFM Error Amp V REF PWM Error Amp EA OV Threshold Threshold FB OUT © 2007 Microchip Technology Inc. Band Soft Start Gap SHDN TSD I IPEAK PWM IPEAK PFM S Q POFF NOFF Switch Drive Logic and timing R ...

Page 4

... Note 1 µA SHDN = GND µA SHDN = OUT % 2. 2. µ 2. Falling IN mV °C Note 4, Note 5 °C Note 4, Note 5 ≥ 0.5V. OUT , θ Exceeding the maximum pin to the V pin, and from the L pin © 2007 Microchip Technology Inc. ...

Page 5

... GND pin. In cases where these diodes are forward-biased, the package power dissipation limits must be adhered to. Thermal protection is not able to limit the junction temperature for these cases. 6: The current limit threshold is a cycle-by-cycle peak current limit. © 2007 Microchip Technology Inc. = SHDN = 3.6V OUT range of -40° ...

Page 6

... JA θ — 84.5 — 2.7V to 5.5V IN Units Conditions °C Steady State °C °C Transient °C/W Typical 4-layer Board with Internal Ground Plane °C/W Typical 4-layer Board with Internal Ground Plane and 2-Vias in Thermal Pad © 2007 Microchip Technology Inc. ...

Page 7

... OUT 100 100 mA OUT 300 mA OUT 2.7 3.05 3.4 3.75 4.1 4.45 Input Voltage (V) FIGURE 2-3: Efficiency vs. Input Voltage (V = 1.8V). OUT © 2007 Microchip Technology Inc 4.7 µ 4.7 µH, V OUT 1.8V OUT + 2.7 3.05 C) FIGURE 2-4: 100 V = 1.2V 90 OUT ...

Page 8

... IN OUT 1 10 100 1000 Output Current (mA) Efficiency vs. Output Load = 3. 3.3V OUT 1 10 100 1000 Output Current (mA) Efficiency vs. Output Load +125 + + 150 200 250 300 350 400 450 500 Output Current (mA) Output Voltage vs. Load = 1.8V). © 2007 Microchip Technology Inc. ...

Page 9

... Input Voltage (V) FIGURE 2-14: Switch Resistance vs. Input Voltage. FIGURE 2-15: Output Voltage Startup Waveform. © 2007 Microchip Technology Inc 4.7 µ 4.7 µH, V OUT IN 2.20 2.15 2.10 2.05 2.00 1.95 2.7 3. FIGURE 2-16: Input Voltage ...

Page 10

... Adjustable or fixed output voltage options can be used to generate the Typical Performance Characteristics. A FIGURE 2-19: Light Load Switching Waveform. FIGURE 2-20: Output Voltage Load Step Response vs. Time. DS22042A-page 4.7 µ 4.7 µH, V (ADJ) = 1.8V, I OUT IN OUT FIGURE 2-21: Output Voltage Line Step Response vs. Time. © 2007 Microchip Technology Inc. = 100 mA, LOAD ...

Page 11

... Shutdown Control Input Pin (SHDN) The SHDN pin is a logic-level input used to enable or disable the device. A logic high (> 45 enable the regulator output. A logic-low (< 15 will ensure that the regulator is disabled. © 2007 Microchip Technology Inc. Table 3-1. Symbol V Power Supply Input Voltage Pin ...

Page 12

... The typical quiescent current draw for this device is 45 µA. PWM-to-PFM mode transition is initiated for any of the following conditions: • Discontinuous inductor current is sensed for a set duration • Inductor peak current falls below the transition threshold limit = 3.6V 300 mA). © 2007 Microchip Technology Inc. ...

Page 13

... P-Channel MOSFET is turned off, even if the output voltage is not in regulation. The device will attempt to start a new switching cycle when the internal oscillator sets the internal RS latch. © 2007 Microchip Technology Inc. 4.6 Enable/Disable Control The SHDN pin is used to enable or disable the MCP1603 ...

Page 14

... R and COMP ) to OUT ) relationship prevent IN OUT IN 5.5. Because of their small size and ⎛ ⎞ × – V OUT IN OUT × ⎜ ⎟ I ----------------------------------------------------- - OUT MAX , V ⎝ ⎠ IN Equation 5-3. Δ I Δ × ESR + -------------------- - L × × © 2007 Microchip Technology Inc. ...

Page 15

... The inductor DC L resistance adds to the total converter power loss. An inductor with a low DC resistance allows for higher converter efficiency. © 2007 Microchip Technology Inc. TABLE 5-2: Part C Number OUT 4.7 µF ® ...

Page 16

... When possible ground planes and traces should be used to help shield the feedback signal and minimize noise and magnetic interference OUT 4.7 µH 1.8V @ 500 OUT V 4.7 µF SHDN FB GND © 2007 Microchip Technology Inc. ...

Page 17

... FIGURE 6-1: Single Li-Ion to 1.5V @ 500 mA Application 5. 4.7 µF SHDN FIGURE 6- 1.0V @ 500 mA Application 2. 4.7 µF FIGURE 6-3: 3 NiMH Batteries to 1.2V @ 500 mA Application.9 © 2007 Microchip Technology Inc 4.7 µ SHDN FB GND L 1 4.7 µ COMP R 4.99 kΩ ...

Page 18

... Part Number Code MCP1603T-120I/OS ETNN MCP1603T-150I/OS EUNN MCP1603T-180I/OS EVNN MCP1603T-250I/OS EWNN MCP1603T-330I/OS EXNN MCP1603T-ADJI/OS EYNN Marking Part Number Code MCP1603LT-120I/OS FMNN MCP1603LT-150I/OS FKNN MCP1603LT-180I/OS EJNN MCP1603LT-250I/OS FGNN MCP1603LT-330I/OS FANN MCP1603LT-ADJI/OS FQNN : Example AFM 711 25 Example ET25 ) e 3 © 2007 Microchip Technology Inc. ...

Page 19

... Package may have one or more exposed tie bars at ends. 3. Package is saw singulated. 4. Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. REF: Reference Dimension, usually without tolerance, for information purposes only. © 2007 Microchip Technology Inc ...

Page 20

... L1 0.60 REF φ 0° c 0.08 b 0.30 α 4° β 4° α φ MAX 5 – 1.10 0.90 1.00 – 0.10 0.45 0.60 4° 8° – 0.20 – 0.50 10° 12° 10° 12° Microchip Technology Drawing C04-128B © 2007 Microchip Technology Inc. ...

Page 21

... APPENDIX A: REVISION HISTORY Revision A (May 2007) • Original Release of this Document. © 2007 Microchip Technology Inc. MCP1603 DS22042A-page 21 ...

Page 22

... MCP1603 NOTES: DS22042A-page 22 © 2007 Microchip Technology Inc. ...

Page 23

... Temperature -40°C to +85°C Package Type Plastic Dual-Flat No-Lead Package (MC), 8-Lead OS = Plastic Thin Small Outline Transistor (OS), 5-Lead © 2007 Microchip Technology Inc. Examples 8-Lead DFN: Temp. Package a) b) ...

Page 24

... MCP1603 NOTES: DS22042A-page 24 © 2007 Microchip Technology Inc. ...

Page 25

... PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 26

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2007 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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