IRDCIP1001-A International Rectifier, IRDCIP1001-A Datasheet

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IRDCIP1001-A

Manufacturer Part Number
IRDCIP1001-A
Description
CONV SGL PHA SYNC BUCK 3.3-4.5V
Manufacturer
International Rectifier
Series
iPOWIR™r
Datasheets

Specifications of IRDCIP1001-A

Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
2V
Current - Output
20A
Voltage - Input
3.3 ~ 4.5V
Regulator Topology
Buck
Frequency - Switching
200kHz
Board Type
Fully Populated
Utilized Ic / Part
iP1001
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power - Output
-
Lead Free Status / Rohs Status
Not Compliant
Other names
*IRDCIP1001-A
Features
• 3.3V to 12V input voltage1
• 20A maximum load capability, with no derating up to T
• 5 bit DAC settable, 0.925V to 2V output voltage range 2
• Configurable down to 3.3Vin & up to 3.3Vout with simple external circuit 3
• 200kHz or 300kHz nominal switching frequency
• Optimized for very low power losses
• Over & undervoltage protection
• Adjustable lossless current limit
• Internal features minimize layout sensitivity *
• Very small outline 14mm x 14mm x 3mm
Description
* Although, all of the difficult PCB layout and bypassing issues have been addressed with the internal design of the iPOWIR block, proper layout techniques should be
applied for the design of the power supply board. There are no concerns about unwanted shutdowns common to switching power supplies, if operated as specified. The
iPOWIR block will function normally, but not optimally without any additional input decoupling capacitors. Input decoupling capacitors should be added at Vin pin for stable
and reliable long term operation. No additional bypassing is required on the Vdd pin. See layout guidelines in datasheet for more detailed information.
www.irf.com
The iP1001 is a fully optimized solution for high current synchronous buck applications requiring up to 20A.
The iP1001 is optimized for single-phase applications, and includes a full function fast transient response
PWM control, with an optimized power semiconductor chip-set and associated passives, achieving benchmark
power density. Very few external components are required, including output inductor, input & output capacitors.
Further range of operation to 3.3Vin can be achieved with the addition of a simple external boost circuit, and
operation up to 3.3Vout can be achieved with a simple external voltage divider.
iPOWIR technology offers designers an innovative board space-saving solution for applications requiring high
power densities. iPOWIR technology eases design for applications where component integration offers
benefits in performance and functionality. iPOWIR technology solutions are also optimized internally for layout,
heat transfer and component selection.
iP1001 Internal Block Diagram
5 Bit
5 Bit
DAC
DAC
ENABLE
ENABLE
PGOOD
PGOOD
FREQ
FREQ
ILIM
ILIM
V
V
D0
D0
D1
D1
D2
D2
D3
D3
D4
D4
DD
DD
Full Function Synchronous Buck Power Block
SGND
SGND
& Driver
& Driver
PWM
PWM
Integrated Power Semiconductors, Control IC & Passives
GNDS
GNDS
05/20/03
PCB
= 90°C
V
V
FS
FS
V
V
F
F
PGND
PGND
iP1001 Power Block
V
V
V
V
IN
IN
SW
SW
iP1001
PD - 94336c
1

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IRDCIP1001-A Summary of contents

Page 1

Full Function Synchronous Buck Power Block Features • 3.3V to 12V input voltage1 • 20A maximum load capability, with no derating • 5 bit DAC settable, 0.925V to 2V output voltage range 2 • Configurable down to ...

Page 2

All specifications @ 25°C (unless otherwise specified) Absolute Maximum Ratings Parameter Symbol V to PGND PGND D0-D4 PGOOD to PGND ENABLE to PGND ILIM FREQ Output RMS Current Block Temperature Recommended ...

Page 3

Electrical Specifications (continued) Parameter Symbol V Operating Current DD V Quiescent Current DD V Quiescent Current IN ILIM to SGND Internal Resistance Notes : 1 For Vin less than 4.5V requires external 5V 2 Can be modified to operate up ...

Page 4

V = 12V 4 1.3V OUT 3.5 T =125°C BLK f set to 300kHZ 3.0 sw 2.5 2.0 1.5 1.0 0.5 0 Output Current (A) Fig 1. ...

Page 5

V = 12V 1. 20A OUT 1.24 f set to 300kHz 125°C BLK 1.18 1.12 1.06 1.00 0.94 0.88 0.9 1.3 1.7 2.1 2.5 2.9 Output Voltage (V) Fig 3. Normalized Power Loss ...

Page 6

Shutdown : Upon receipt ...

Page 7

Pin Ball D esignator A 9-A 12, B9-B12 14, D 9-D 14, E 9-E 16, IN F9-F16, G9 6-A7, A 13-A 15, B1, B6-B7, B13-B16 6-C ...

Page 8

Average VDD Current A Average VDD DC V Voltage PGOOD iP1001 FREQ ENABLE ILIM Average OUT Input P Current LOSS A Average Input DC V Voltage VO VOS ...

Page 9

SGND FREQ GNDS PGOOD ENABLE Fig 8. Recommended PCB Footprint (Top View) www.irf.com NC ...

Page 10

User’s Design Guidelines The iP1001 is a 20A power block that consists of optimized power semiconductors, PWM control and its associated passive components based on a synchronous buck topology and offers an optimized solution where space, ...

Page 11

DESIGN PROCEDURE Inductor Selection The inductor is selected according to the following expression (1-D) / (fsw OUT L where OUT the output voltage in Volts, OUT ...

Page 12

Application Issues Setting V above 2V OUT In certain applications where the output voltage is required to be set higher than the maximum DAC code setting of 2V possible to use an external resistive voltage divider which, ...

Page 13

Layout Guidelines For stable and noise free operation of the whole power system it is recommended that the designer uses to the following guidelines. 1. Follow the layout scheme presented in Fig.9. Make sure that the output inductor L1 is ...

Page 14

Reference Design The schematics in Fig.10a & 10b and complete Bill of Materials in Table 4 are provided as a reference design to enable a preliminary evaluation of iP1001. They represent a simple method of applying the iP1001 ...

Page 15

OUT 2 7 LBI LBO GND 4 5 REF SHDN C19 MAX1675 0.1µF JP3 R8 100K TP1 TP3 PGOOD SW1 + ...

Page 16

... IRDCiP1001-A (For operation <4.5V Designator Value C1, C3, C5 100uF C2, C4, C6, C7, C8, C9, C10, C15 - C11, C12, C13, C14 470uF Capacitor, 6.3V, 20%, Tantalum C16, C19 0.100uF C17, C18 10.0uF C20 1.00uF C21 47.0pF D1 40V JP1, JP2, JP3 - JP1-1, JP2-1, JP3 1.06uH L2 22uH ...

Page 17

... Refer to the following application notes for detailed guidelines and suggestions when implementing iPOWIR Technology products: AN-1028: Recommended Design, Integration and Rework Guidelines for International Rectifier’s iPOWIR Technology BGA Packages This paper discusses the assembly considerations that need to be taken when mounting iPOWIR BGA’s on printed circuit boards ...

Page 18

XXXX XXXX iP1001 iP1001 20mm NOTES: 1. OUTLINE CONFORMS TO EIA-481 & EIA-541. IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 18 0123 XXXX iP1001 TOP Part Marking 24mm FEED DIRECTION ...

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