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ILC6363CIRADJX Datasheet

  • ILC6363CIRADJX

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

  • 14頁

  • FAIRCHILD

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www.fairchildsemi.com
ILC6363
Step-Up DC-DC Converter for One-Cell Lithium-Ion
Batteries
Features
鈥?ILC6363CIR-50: Fixed 5.0V output; custom voltages are
available upon request
鈥?ILC6363CIR-ADJ: Adjustable output to 6V maximum
鈥?Capable of 500mA output current
鈥?Peak ef鏗乧iency: > 90% at V
OUT
= 3.6V, I
OUT
= 300mA,
V
IN
= 3.6V
鈥?No external diode is required (synchronous recti鏗乧ation)
鈥?Battery input current of 300碌A(chǔ) at no load
鈥?True load disconnect from battery input in shutdown
(1碌A(chǔ))
鈥?Oscillator frequency: 300kHz 鹵15%
鈥?Low battery detector with 100ms transient rejection delay
鈥?Power good output 鏗俛g when V
OUT
is in regulation
鈥?MSOP-8 package
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 ef鏗乧iency 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.
Con鏗乬ured as a 300kHz, 鏗亁ed 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
in鏗倁ence input and output ripple voltages, respectively.
Since the ILC6363 has an internal synchronous recti鏗乪r, the
standard 鏗亁ed 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 10碌F 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.
Applications
鈥?Cellular phones
鈥?Palmtops, PDAs and portable electronics
鈥?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 鏗亁ed 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鈥檚 input
Typical Circuit
C
IN
100碌F
+
V
IN
2.7V to 4.2V
ON
OFF
R6
4
SEL
POK
5
ILC6363CIR-XX
L
1
15碌H
2
R5
3
LBI/SD
LBO
6
Low Battery
Detector Output
Power Good Output
(Fixed V
OUT
only)
V
IN
GND
7
L
X
V
OUT
8
C
OUT
10碌F 100碌F
+
+
V
OUT
Optimized to Maximize Battery Life
ILC6363 Efficiency (%)
80
3.6
70
Time
3.0
MSOP-8
PWM
PFM
Figure 1.
REV. 1.3.5 5/21/02
Battery Voltage (V)
90
4.2

ILC6363CIRADJX 產(chǎn)品屬性

  • 4,000

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - DC DC 開關(guān)穩(wěn)壓器

  • -

  • 降壓（降壓），升壓（升壓）

  • 可調(diào)式

  • 1

  • 可調(diào)至 6V

  • 2.7 V ~ 4.2 V

  • -

  • 300kHz

  • 500mA

  • 是

  • -40°C ~ 85°C

  • 表面貼裝

  • 8-TSSOP，8-MSOP（0.118"，3.00mm 寬）

  • 帶卷 (TR)

  • 8-MSOP

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