REV. 1.8
FS8860-DS-18_EN
AUG 2006
Datasheet
FS8860
1.0A Adjustable & Fixed Voltage LDO Linear Regulator
FS8860
Fortune Semiconductor Corporation
富晶電子股½有限公司
28F., No.27, Sec. 2, Zhongzheng E. Rd.,
Danshui Town, Taipei County 251, Taiwan
Tel.：886-2-28094742
Fax：886-2-28094874
www.ic-fortune.com
This manual contains new product information.
Fortune Semiconductor Corporation
reserves the rights to
modify the product specification without further notice. No liability is assumed by
Fortune Semiconductor
Corporation
as a result of the use of this product. No rights under any patent accompany the sale of the
product.
Rev. 1.8
2/14
FS8860
1.
General Description
4.
Ordering Information
Package
Pin Out
The FS8860 is a low-dropout linear regulator that
operates in the input voltage range from +2.5V to
+7.0V and delivers 1.0A output current.
The FS8860 is available in two types, fixed output
voltage type or adjustable output voltage type. The
fixed output voltage type is preset at an internally
trimmed voltage 1.8V, 2.5V, or 3.3V. Other options
1.5V, 2.85V, 3.0V and 3.6V are available by special
order only. The output voltage range of the
adjustable type is from 1.25V to 5V.
The FS8860 consists of a 1.25V bandgap reference,
an error amplifier, and a P-channel pass transistor.
Other features include short-circuit protection and
thermal shutdown protection. The FS8860 devices
are available in SOT-223 and TO-252 packages.
FS8860-xx x x
G：SOT-223 1.IN
2.GND 3.OUT
H：SOT-223 1.GND
2.IN
3.OUT
J：SOT-223 1.GND
2.OUT 3.IN
P：TO-252
1.IN
2.GND 3.OUT
R：TO-252
1.GND
2.OUT 3.IN
Note :
For the adjustable voltage types, the
GND pin is replaced with the ADJ pin
Temperature Range
C : Commercial Standard
P : Commercial Standard, Lead(Pb) Free and
Phosphorous(P) Free Package
Output Voltage
(For fixed voltage types only. For adjustable voltage
types, these two digits are eliminated.)
15 : 1.5V
18
: 1.8V
25
: 2.5V
29 : 2.85V
30 : 3.0V
33
: 3.3V
36 : 3.6V
Default
: Adjustable Output
Note:
The output voltages other than the preset
values are available by order only.
2.
Features
Low dropout voltage 700mV at 1.0A typ.
Adjustable output voltage (FS8860-Cx) or fixed
output voltage (FS8860-xxCx) preset at 1.8V,
2.5V, or 3.3V
High output voltage accuracy
Fixed output voltage :
±35mV
Adjustable output voltage :
±50mV
Small output capacitor
Output current limit
Thermal overload shutdown protection
SOT-223 and TO-252 Packages
5.
Pin Configurations
SOT-223
Part
No.
FS8860
-xxxG
Pin 1
IN
Pin 2
GND/ADJ
(TAP)
IN
(TAP)
OUT
(TAP)
Pin 3
OUT
OUT
IN
1
2
TO-252
3
FS8860
xxxxxxxx
3.
Applications
CD-ROM Drivers
Active SCSI Terminators
High Efficiency Linear Regulators
Monitor Microprocessors
Low Voltage Micro-Controllers
Post Regulator for Switching Power
FS8860
GND/ADJ
-xxxH
FS8860
GND/ADJ
-xxxJ
Part
No.
FS8860
-xxxP
Pin 1
IN
Pin 2
GND/ADJ
(TAP)
OUT
(TAP)
Pin 3
OUT
IN
FS8860
xxxxxxxx
FS8860
GND/ADJ
-xxxR
2
1
3
Rev. 1.8
3/14
FS8860
6.
Package Marking Information
EX：FS8860-33CJ
FS8860
33CJxxxx
xxxx：Date Code
EX：FS8860-33PJ
FS8860
33PJxxxx
xxxx：Date Code
EX：FS8860-CJ（ADJ type）
FS8860
CJxxxx
xxxx：Date Code
EX：FS8860-PJ（ADJ type）
FS8860
PJxxxx
xxxx：Date Code
7.
Pin Description
Part NO.
FS8860-xxCG
FS8860-xxCH
FS8860-xxCJ
FS8860-xxCP
FS8860-xxCR
Symbol
GND/ADJ
IN
OUT
Description
Ground pin or adjust terminal pin.
Regulator input pin.
Regulator output pin.
IN
is the regulator input pin. Supply voltage can range from 2.5V to 7.0V.
An input capacitor is
recommended. A 10µF tantalum on the input is a suitable input bypassing for almost all applications.
OUT
is the output voltage pin. Sources up to 0.6A. Bypass with a 10µF capacitor to GND.
The capacitor
from VOUT to GND provides compensation feedback to the internal gain stage. This is to ensure stability at
the output terminal. The minimum output capacitance is 10µF tantalum. Any increase of the output
capacitance will improve the loop stability and transient response. The output capacitor increasing its value
will increase stability. COUT = 100µF or more is typical for high current regulator design.
GND
provides the reference for all voltages.
ADJ
provides VREF=1.25V（Typ.）for adjustable output voltage.
Rev. 1.8
4/14
FS8860
8.
V
IN
Typical Application Circuit
FS8860-Cx
10µF
10µF
V
OUT
V
REF
I
ADJ
V
OUT
=
V
REF
×
(1
+
R
2
)
+
I
ADJ
×
R
2
R
1
FS8860-xxCx
V
IN
10µF
10µF
V
OUT
9.
Functional Block Diagrams
IN
Current Limit
IN
Current Limit
Shutdown
Logic
Thermal
Protection
Shutdown
Logic
Thermal
Protection
OUT
1.25V
Bandgap
Reference
R1
OUT
1.25V
Bandgap
Reference
R2
GND
Fixed Voltage Type
Adjustable Voltage Type
ADJ
10. Absolute Maximum Ratings
Input voltage VIN to GND -------------------------------------------------------------------------------------------------- 9V
Output current limit, I(LIMIT) --------------------------------------------------------------------------------------------- 1.3A
Continuous power dissipation ------------------------------------------------------------------------------ Internally Limited
Junction Temperature, T
J
----------------------------------------------------------------------------------------------- +155°C
Storage temperature range, TSTG --------------------------------------------------------------------- -55℃ to +150℃
Operating junction temperature range ---------------------------------------------------------------- -40℃ to +125℃
Lead temperature (soldering, 10sec) ------------------------------------------------------------------------------- 260℃
* Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the
device. These are stress ratings only, and function operation of the device at these or any other
conditions beyond those indicated under “recommended operating conditions” is not implied.
Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Rev. 1.8
5/14
stm32/stm8
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