ILC6363CIR50X Fairchild Semiconductor, ILC6363CIR50X Datasheet

ILC6363CIR50X

Manufacturer Part Number

ILC6363CIR50X

Description

IC CONV DC/DC STEP UP 8-MSOP

Manufacturer

Fairchild Semiconductor

Type

Step-Down (Buck), Step-Up (Boost)r

Datasheet

1.ILC6363CIR50X.pdf (14 pages)

Specifications of ILC6363CIR50X

Internal Switch(s)

Yes

Synchronous Rectifier

Yes

Number Of Outputs

Voltage - Output

Current - Output

500mA

Frequency - Switching

300kHz

Voltage - Input

2.7 ~ 4.2 V

Operating Temperature

-40°C ~ 85°C

Mounting Type

Surface Mount

Package / Case

8-MSOP, Micro8™, 8-uMAX, 8-uSOP,

Power - Output

315mW

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

H&T Electronics

Part Number:

ILC6363CIR50X

Quantity:

3 800

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Features

• ILC6363CIR-50: Fixed 5.0V output; custom voltages are

• ILC6363CIR-ADJ: Adjustable output to 6V maximum

• Capable of 500mA output current

• Peak efﬁciency: > 90% at V

• No external diode is required (synchronous rectiﬁcation)

• Battery input current of 300µA at no load

• True load disconnect from battery input in shutdown

• Oscillator frequency: 300kHz ±15%

• Low battery detector with 100ms transient rejection delay

• Power good output ﬂag when V

• MSOP-8 package

Applications

• Cellular phones

• Palmtops, PDAs and portable electronics

• Equipment using single Lithium-Ion batteries

Description

The ILC6363 step-up/step-down DC-DC converter is a

switch mode converter, capable of supplying up to 500mA

output current, at a ﬁxed or user selectable output voltage.

The range of input, and output voltage options makes the

ILC6363 ideal for Lithium-ion (Li-ion), or any other battery

application, where the input voltage range spans above and

below the regulated output voltage. When ILC6363’s input

Typical Circuit

ILC6363

Step-Up DC-DC Converter for One-Cell Lithium-Ion

Batteries

2.7V to 4.2V

available upon request

(1µA)

OFF

= 3.6V

100 F

15 H

PWM

PFM

OUT

ILC6363CIR-XX

SEL

LBI/SD

OUT

Figure 1.

MSOP-8

= 3.6V, I

is in regulation

GND

LBO

POK

OUT

= 300mA,

10 F

Low Battery

Detector Output

Power Good Output

(Fixed V

OUT

100 F

OUT

voltage exceeds the output voltage by more than 800mV, the

output will begin to track the input linearly.

The ILC6363 is a direct replacement for ILC6360, in appli-

cations where SYNC pin is not used. The PFM or PWM

operating mode is user selectable through SEL pin connected

to ground or left open, respectively. The choice should be

dependent upon the current to be delivered to the load: PFM

is recommended for better efﬁciency at light load,while

PWM is recommended for more than 50mA load current.

In shutdown mode, the device allows true load disconnect

from battery input.

Conﬁgured as a 300kHz, ﬁxed frequency PWM/PFM boost

converter, the ILC6363 can perform a limited buck operation

in PFM mode, when the input voltage is up to 0.8V higher

than the output voltage.

The ILC6363 is unconditionally stable with no external

compensation; the sizes of the input and output capacitors

inﬂuence input and output ripple voltages, respectively.

Since the ILC6363 has an internal synchronous rectiﬁer, the

standard ﬁxed voltage version requires minimal external

components: an inductor, an input capacitor, and an output

capacitor. If a tantalum output capacitor is used, then an

additional 10µF ceramic output capacitor will help reduce

output ripple voltage.

Other features include a low battery input detector with a

built-in100ms transient rejection delay and a power good

indicator useful as a system power on reset.

only)

OUT

Optimized to Maximize Battery Life

www.fairchildsemi.com

Time

REV. 1.3.5 5/21/02

4.2

3.6

3.0

Related parts for ILC6363CIR50X

ILC6363CIR50X Summary of contents

Page 1

ILC6363 Step-Up DC-DC Converter for One-Cell Lithium-Ion Batteries Features • ILC6363CIR-50: Fixed 5.0V output; custom voltages are available upon request • ILC6363CIR-ADJ: Adjustable output to 6V maximum • Capable of 500mA output current • Peak efﬁciency: > 90 ...

Page 2

ILC6363 Pin Assignments LB/ SEL ILC6363CIR-XX Pin Deﬁnitions Pin Number Pin Name LBI/SD 4 SEL POK (ILC6363CIR- (ILC6363CIR-ADJ) 6 LBO 7 GND ...

Page 3

PRODUCT SPECIFICATION Electrical Characteristics ILC6363CIR-50 in PFM Mode Unless otherwise speciﬁed, all limits are at V BOLDFACE type indicate limits over the speciﬁed operating temperature range. (Note 2) Parameter Symbol Output Voltage V OUT(nom) Maximum Output I OUT Current Load ...

Page 4

ILC6363 General Electrical Characteristics T = 25° 3.6V 50mA, unless otherwise speciﬁed LBI OUT BOLDFACE indicate limits over the speciﬁed operating temperature range. (Note 2). Parameter Symbol LBO output voltage low V ...

Page 5

PRODUCT SPECIFICATION Application Information The ILC6363 performs boost DC-DC conversion by control- ling the switch element as shown in the simpliﬁed circuit in Figure 3 below. Figure 3. Basic Boost Circuit When the switch is closed, current is built up ...

Page 6

ILC6363 Figure 5. PFM Waveform Other Considerations The other limitation of PWM techniques is that, while the fundamental switching frequency is easier to ﬁlter out since it's constant, the higher order harmonics of PWM will be present and may have ...

Page 7

PRODUCT SPECIFICATION When the ILC6363 is shut down, the synchronous rectiﬁer disconnects the output from the input. This ensures that there is only leakage (I < 1µA typical) from the input to the out- IN put so that the battery ...

Page 8

PRODUCT SPECIFICATION Description Vendor T495 series tantalum Kemet 595D series tantalum Sprague TAJ, TPS series AVX tantalum X5R Ceramic TDK X7R Ceramic AVX muRata Layout and Grounding Considerations High frequency switching and large peak currents means PCB design for DC-DC ...

Page 9

... DC-DC converter muRata 100µF, ceramic capacitor muRata 15µH, 1.3A Dale, Panasonic User determined values Dale, Panasonic 10k , 1/10W, SMT Manufacturer Fairchild Semiconductor DC-DC converter muRata 100µF, ceramic capacitor muRata 15µH, 1.3A Dale, Panasonic 10k , 1/10W, SMT PRODUCT SPECIFICATION Description Description REV ...

Page 10

ILC6363 Typical Performance Characteristics ILC6363CIR-ADJ Unless otherwise speciﬁed 25° Efficiency vs Output Current (PFM Mode) 100 V =3.4V V =3. =2. =3. =3. ...

Page 11

PRODUCT SPECIFICATION Typical Performance Characteristics ILC6363CIR-ADJ Unless otherwise speciﬁed 25° Output Ripple Voltage vs Input Voltage 160 I OUT 140 120 100 I =0mA, 10mA OUT 80 I =100mA OUT =50mA ...

Page 12

ILC6363 Typical Performance Characteristics ILC6363CIR-ADJ Unless otherwise speciﬁed 25° Temperature OUT 3.7 V =3.6V (nominal) OUT V =2.8V =4.2V, I =200mA IN LOAD 3.6 V =4.2V =3.6V, I ...

Page 13

PRODUCT SPECIFICATION Mechanical Dimensions 8 Lead MSOP 0.122 (3.1) 0.114 (2.9) Pin 1 identifier 0.006 (.15) 0.016 (.40) 0.004 (.05) 0.01 (.25) REV. 1.3.5 5/21/02 0.122 (3.1) 0.244 (5.15) 0.114 (2.9) 0.228 (4.65) 0.025 (.65)BSC 0.009 (.23) 0.005 (.13) 0.043 ...

Page 14

... ILC6363 Ordering Information for Ta = -40°C to +85°C, MSOP-8 Package Part Number Output Voltage ILC6363CIR50X 5.0 ILC6363CIRADJX Adjustable DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; ...

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