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SP6654EU-L

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17
1
Date: 2/1/05 SP6654 High Efficiency 800mA Synchronous Buck Regulator © Copyright 2005 Sipex Corporation
SP6654
FEATURES
■ Ultra-low 20µA Quiescent Current
■ 98% Efficiency Possible
■ 800mA Output Current
■ 2.7V to 5.5V Input Voltage Range
■ Output Adjustable Down to 1.0V
■ No External FET’s Required
■ 1.25A Inductor Peak Current Limit
■ 100% Duty Ratio Low Dropout Operation
■ 80µA Light Load Quiescent Current
in Dropout
■ Logic Shutdown Control
■ Programmable UVLO
■ Small 10 pin MSOP Package
■ Power Good Indicator
■ Industry Standard 10 Pin MSOP and
and Small DFN Package
High Efficiency 800mA Synchronous Buck Regulator
APPLICATIONS
■ PDA's
■ DSC's
■ MP3 Players
■ USB Devices
■ Point of Use Power
The SP6654 is a 800mA synchronous buck regulator which is ideal for portable applications that
use a Li-Ion or 3 cell alkaline/NiCD/NiMH input. The SP6654’s proprietary control loop, 20µA light
load quiescent current, and 0.3Ω power switches provide excellent efficiency across a wide range
of output currents. As the input battery supply decreases towards the output voltage the SP6654
seamlessly transitions into 100% duty ratio operation further extending useful battery life. The
SP6654 is protected against overload and short circuit conditions with a precise inductor peak
current limit. Other features include programmable under voltage lockout, externally pro-
grammed output voltage down to 1.0V, logic level shutdown control, and an open drain power
good indicator when V
OUT
is above 94% of its programmed value.
®
PWR
GD
VI
VO
D1
D0
22µF
L1
10µH
V
OUT
800mA
2.7V to 5.5V Input
10Ω
1µF
SP6654
P
VIN
PWR
GD
D1
D0
LX
GND
V
OUT
FB
P
GND
V
IN
22µF
C
IN
CV
IN
C
OUT
R
VIN
R
F
CF
22pF
R
I
200K
1M
Ideal for portable designs powered with Li Ion battery
TYPICAL APPLICATION SCHEMATIC
DESCRIPTION
SP6654
10 Pin DFN
10
9
8
7
6
1
2
3
4
5
PV
IN
V
IN
PWR
GD
D1
D0
LX
P
GND
GND
V
OUT
FB
Now Available in Lead Free Packaging
2
Date: 2/1/05 SP6654 High Efficiency 800mA Synchronous Buck Regulator © Copyright 2005 Sipex Corporation
V
IN
=PV
IN
=V
SDN
=3.6V, V
OUT
=V
FB
, I
O
= 0mA, T
AMB
= -40°C to +85°C, The ♦ denotes the specifications which
apply over the full operating temperature range, unless otherwise specified.
PV
IN
,V
IN
.............................................................................................. 6V
All other pins .............................................................. -0.3V to V
IN
+0.3V
PV
IN
, P
GND
, LX current ........................................................................ 2A
Storage Temperature .................................................. -65 °C to 150 °C
Operating Temperature ................................................. -40°C to +85°C
Junction Temperature ................................................................. 125°C
Theta JA (10 Pin MSOP) .......................................................... 214°C/w
Theta JA (10 Pin DFN) ............................................................ 48.7°C/w
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at
these ratings or any other above those indicated in the operation
sections of the specifications below is not implied. Exposure to
absolute maximum rating conditions for extended periods of time may
affect reliability.
ELECTRICAL CHARACTERISTICS
RETEMARAPNIMPYTXAMSTINUSNOITIDNOC
gnitarepOegatloVtupnIOLVU5.5V
♦
IfotluseR
Q
tatnemerusaem
V
NI
VP=
NI
V5.5=
egatloVtuptuOmuminiM0.1V
♦
rV,egatloVteSBF
rV,egatloVteSBF487.0008.0618.0V
esolCAm002=OI,C°52
,Hµ01=IL.pooL
ycaruccAllarevO
4±
%
VtaderusaeM
NI
on,V5.5=
T,daol
BMA
C°07otC°0=
5±
♦
VtaderusaeM
NI
Am002,V6.3=
pooLesolC,daol
,niMNOK-tnatsnoCemiT-nO
T
NO
V(/NOK=
NI
V-
TUO
)
5.152.20.3sµ*V
♦
C,Hµ01=IL,pooLesolC
TUO
=
Fµ22
T,niMemiT-ffO
FFO
K=
FFO
V/
TUO
K-tnatsnoC
FFO
6.14.22.3sµ*V
♦
,deppirttimiltnerrucrotcudnI
V
BF
VtaderusaeMV5.0=
'
V2=
gniknalBemiT-ffO001
sn
T
BMA
C°72=
ecnatsiseRhctiwSSOMP3.06.0
♦
Am002=SOMPI
ecnatsiseRhctiwSSOMN3.06.0
♦
Am002=SOMNI
timiLtnerruCrotcudnI0.152.105.1A
♦
V
BF
V5.0=
tnerruCegakaeLXL10.03Aµ
♦
0=1D=0D
ycneiciffErewoP
69
%
V
TUO
Am002=OI,V5.2=
T
BMA
C°72=
29
V
TUO
Am008=OI,V3.3=
T
BMA
C°72=
tnerruCdaoLdeetnarauGmuminiM008009Am
♦
V
NI
tnerruCtnecseiuQ0203Aµ
♦
V
TUO
V,V3.3=
NI
dnaV6.3=
V
NI
V5.5=
V
NI
tnerruCnwodtuhS1005An
♦
V0=0D=1D
V
TUO
tnerruCtnecseiuQ25Aµ
♦
V
TUO
V3.3=
V
TUO
tnerruCnwodtuhS1005An
♦
V0=0D=1D
3
Date: 2/1/05 SP6654 High Efficiency 800mA Synchronous Buck Regulator © Copyright 2005 Sipex Corporation
V
IN
=PV
IN
=V
SDN
=3.6V, V
OUT
=V
FB
, I
O
= 0mA, T
AMB
= -40°C to +85°C, The ♦ denotes the specifications wich apply over
the full operating temperature range, unless otherwise specified.
ELECTRICAL CHARACTERISTICS
RETEMARAPNIMPYTXAMSTINUSNOITIDNOC
tuokcoLegatlovrednUOLVU
V,dlohserhT
NI
gnillaf
55.207.258.2
V
♦
V=0D,V0=1D
NI
07.258.200.3
♦
V=1D
NI
V0=0D,
58.200.351.3
♦
V=1D
NI
V=0D,
NI
siseretsyhOLVU04VmT
BMA
C°72=
egatloVtuptuOwoLDGRWP4.0V
♦
V
NI
I,V3.3=
KNIS
Am1=
tnerruCegakaeLDGRWP1Aµ
♦
V6.3=DGRWPV
dlohserhTgnisiRDGRWP6-%
,%6-egatloVteSBF
T
BMA
C°72=
sisiretsyHDGRWP08VmT
BMA
C°72=
tnerruCegakaeL0D,1D1005An
♦
egatloVdlohserhTtupnI0D,1D
06.009.0
V
♦
noitisnarTwoLothgiH
52.18.1
♦
noitisnarThgiHotwoL
tnerruCegakaeLBF1001AnV1=BF
D1 D0
00Shutdown. All internal circuitry is disabled and the power switches are opened.
01Device enabled, falling UVLO threshold =2.70V
10Device enabled, falling UVLO threshold =2.85V
11Device enabled, falling UVLO threshold =3.00V
Table 1. Operating Mode Definition
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P17

SP6654EU-L

Mfr. #:
Buy SP6654EU-L
Manufacturer:
MaxLinear
Description:
Switching Controllers High Eff 800mA Synchronous
Lifecycle:
New from this manufacturer.
Delivery:
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