MCP1602EV Microchip Technology, MCP1602EV Datasheet

BOARD EVALUATION FOR MCP1602

MCP1602EV

Manufacturer Part Number
MCP1602EV
Description
BOARD EVALUATION FOR MCP1602
Manufacturer
Microchip Technology
Type
DC/DC Switching Converters, Regulators & Controllersr
Datasheets

Specifications of MCP1602EV

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
MCP1602
Input Voltage
2.7 V to 5.5 V
Output Voltage
0.8 V to 3.3 V
Product
Power Management Modules
For Use With/related Products
MCP1602
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP1602EV
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Features
• Over 90% Typical Efficiency
• Output Current: Up To 500 mA
• Power-Good Output with 262 ms Delay
• Low Quiescent Current: 45 µA (typical)
• Low Shutdown Current: 0.05 µA (typical)
• Automatic PWM to PFM Mode Transition
• Adjustable Output Voltage:
• Fixed Output Voltage:
• 2.0 MHz Fixed-Frequency PWM (Heavy Load)
• Internally Compensated
• Undervoltage Lockout (UVLO)
• Overtemperture Protection
• Overcurrent 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
- 8-Lead MSOP
- 8-Lead 3x3 DFN
2.0 MHz, 500 mA Synchronous Buck Regulator
1 SHDN
2
3
4
V
PG
A
CC
GND
MSOP-8
V
OUT
P
/V
GND
V
L
FB
IN
X
8
7
6
5
with Power-Good
General Description
The MCP1602 is a high efficient, fully integrated
500 mA synchronous buck regulator with a power-
good monitor. The 2.7V to 5.5V input voltage range and
low quiescent current (45 µA, typical) makes the
MCP1602 ideally suited for applications powered from
1-cell Li-Ion or 2-cell/3-cell NiMH/NiCd batteries.
At heavy loads, the MCP1602 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 MCP1602
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 MCP1602 to achieve the highest efficiency
over the entire operating current range.
The open-drain power-good feature of the MCP1602
monitors the output voltage and provides indication
when the output voltage is within 94% (typical) of the
regulation value. The typical 2% hystereses in the
power-good transition threshold as well as a
262 ms (typical) delay time ensures accurate power-
good signaling.
The MCP1602 is available in either the 8-pin DFN or
MSOP package. It is also 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.
Additional
overtemperature, and overcurrent protection.
SHDN
A
V
GND
PG
CC
protection
MCP1602
1
2
3
4
3x3 DFN-8
features
8
7
6
5
include:
DS22061A-page 1
P
L
V
V
X
GND
IN
OUT
/V
FB
UVLO,

Related parts for MCP1602EV

MCP1602EV Summary of contents

Page 1

... GND OUT FB © 2007 Microchip Technology Inc. with Power-Good General Description The MCP1602 is a high efficient, fully integrated 500 mA synchronous buck regulator with a power- good monitor. The 2.7V to 5.5V input voltage range and low quiescent current (45 µA, typical) makes the MCP1602 ideally suited for applications powered from 1-cell Li-Ion or 2-cell/3-cell NiMH/NiCd batteries ...

Page 2

... MCP1602 Typical Application Circuit V IN 2.7V to 4.5V 10Ω 4.7 µF 0.1 µF ON OFF DS22061A-page 2 4.7 µ GND GND 1 SHDN PG 3 MCP1602 R PULLUP OUT 1.5V @ 500 mA 4.7 µF Processor Reset © 2007 Microchip Technology Inc. ...

Page 3

... V IN Thermal UVLO Shutdown Slope Comp OSC PFM Error Amp V REF PWM Error Amp EA OV Threshold OUT UV Threshold © 2007 Microchip Technology Inc. Band Soft Start Gap SHDN TSD IPEAK PWM Disable IPEAK PFM Switcher -ILPK S Q POFF NOFF Switch Drive R ...

Page 4

... Conditions Note 1 Note 1 SHDN = GND SHDN = OUT V = 2. 2. 2.7V to 5.5V, SHDN = A IN GND V Falling IN Note 5, Note 6 Note 5, Note 6 Note 2 ≥ 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 too. Thermal protection is not able to limit the junction temperature for these cases. 7: The current limit threshold is a cycle-by-cycle current limit. © 2007 Microchip Technology Inc. = 3.6V OUT = +25° ...

Page 6

... JA θ — 60 — 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

... Efficiency vs. Input Voltage (V = 1.2V). OUT 100 100 mA OUT 300 mA OUT 3.0 3.2 3.4 3.6 3.8 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. +25°C OUT 3. 2 FIGURE 2-4: 100 V = 1.2V OUT ...

Page 8

... FIGURE 2-12: Current (V OUT (ADJ) = 1.8V 100 mA, OUT LOAD 3.3V OUT 1 10 100 1000 Output Current (mA) Efficiency vs. Output Load PG Threshold Low 110 125 Ambient Temperature (°C) PG Threshold Voltage vs. 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 (ADJ) = 1.8V, I OUT IN OUT 2.10 2.05 2.00 1 ...

Page 10

... Light Load Switching Waveform. FIGURE 2-20: Output Voltage Load Step Response vs. Time. DS22061A-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. FIGURE 2-22: Power-Good Output Timing. © 2007 Microchip Technology Inc. = 100 mA, LOAD ...

Page 11

... For the adjustable output voltage options, connect the center of the output voltage divider to the V fixed-output voltage options, connect the output of the buck regulator to this pin (V ). OUT © 2007 Microchip Technology Inc. Table 3-1. Description Shutdown Input Pin Analog Input Supply Voltage Pin ...

Page 12

... PG signal during line and load transients. V TH_H V OUT = 300 mA). PG FIGURE 4- the output voltage OUT , TH_L ) the PG signal transitions to a OUT V TH_L t RPU t RPD Power-Good Timing. © 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. 4.7 Enable/Disable Control The SHDN pin is used to enable or disable the MCP1602 ...

Page 14

... R and COMP ) to OUT ) relationship prevent IN OUT IN 5-2. Because of their small size and ⎛ ⎞ × – V × OUT IN OUT ⎜ ⎟ I ----------------------------------------------------- - OUT MAX , ⎝ ⎠ Equation 5-3. ΔI ΔI × ESR + -------------------- - × × © 2007 Microchip Technology Inc. ...

Page 15

... SD10 6.2 0.218 0.92 SD12 3.3 0.104 1.42 SD12 4.7 0.118 1.29 SD12 6.2 0.170 1.08 © 2007 Microchip Technology Inc. TABLE 5-2: Part C Number OUT 4.7 µF Wurth Elektronik® 22 µF WE-TPC Type S WE-TPC Type S WE-TPC Type S WE-TPC Type M ...

Page 16

... When possible ground planes and traces should be used to help shield the feedback signal and minimize noise and magnetic interference. 4.7 µ GND GND 1 SHDN PG 3 MCP1602 R PULLUP OUT 1.5V @ 500 mA 4.7 µF Processor Reset © 2007 Microchip Technology Inc. ...

Page 17

... Single Li-Ion to 1.5V @ 500 mA Application 5.0V 10Ω 4.7 µF 0.1 µF ON OFF FIGURE 6- 1.0V @ 500 mA Application 2.7V to 4.5V 10Ω 4.7 µF 0.1 µF ON OFF FIGURE 6-3: 3 NiMH Batteries to 1.2V @ 500 mA Application. © 2007 Microchip Technology Inc. 4.7 µ GND GND SHDN ...

Page 18

... Part Number Code MCP1602-120I/MF CAAU MCP1602-150I/MF CAAV MCP1602-180I/MF CAAW MCP1602-250I/MF CAAY MCP1602-330I/MF CAAZ MCP1602-ADJI/MF CAAS Part Number Code MCP1602-120I/MF 160212 MCP1602-150I/MF 160215 MCP1602-180I/MF 160218 MCP1602-250I/MF 160225 MCP1602-330I/MF 160233 MCP1602-ADJI/MF 1602AJ : Example CAAU 0733 256 Example: 1602AJ 733256 © 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. b EXPOSED PAD E K ...

Page 20

... A2 0.75 0.85 A1 0.00 – E 4.90 BSC E1 3.00 BSC D 3.00 BSC L 0.40 0.60 L1 0.95 REF φ 0° – c 0.08 – b 0.22 – Microchip Technology Drawing C04-111B φ L MAX 1.10 0.95 0.15 0.80 8° 0.23 0.40 © 2007 Microchip Technology Inc. ...

Page 21

... APPENDIX A: REVISION HISTORY Revision A (October 2007) • Original Release of this Document. © 2007 Microchip Technology Inc. MCP1602 DS22061A-page 21 ...

Page 22

... MCP1602 NOTES: DS22061A-page 22 © 2007 Microchip Technology Inc. ...

Page 23

... Microchip sales office for more information. Temperature Range I = -40°C to +85°C Package * MF = Plastic Dual Flat No Lead, (3x3 mm Body), 8-Lead MS = Plastic Micro Small Outline, 8-Lead © 2007 Microchip Technology Inc. Examples MCP1602-1202I/MF: 1.20V, 500 mA Buck Package b) MCP1602-1202I/MS: 1.20V, 500 mA Buck c) MCP1602-1502I/MF: 1 ...

Page 24

... MCP1602 NOTES: DS22061A-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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