SP6654 Datasheet, PDF (2/16 Pages) Sipex Corporation – High Efficiency 800mA Synchronous Buck Regulator Ideal for portable designs powered with Li Ion battery

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
Lead Temperature (Soldering, 10 sec) ....................................... 300 °C
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
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.
PARAMETER
MIN
TYP
MAX
UNITS
CONDITIONS
Input Voltage Operating
UVLO
5.5
V
♦
Result of IQ measurement at
VIN=PVIN=5.5V
Minimum Output Voltage
1.0
V
♦
FB Set Voltage, Vr
FB Set Voltage, Vr
Overall Accuracy
On-Time Constant - KON Min,
TON=KON/(VIN-VOUT)
Off-Time Min,
TOFF=KOFF/VOUTConstant -
KOFF
Off-Time Blanking
PMOS Switch Resistance
NMOS Switch Resistance
Inductor Current Limit
LX Leakage Current
Power Efficiency
0.784
1.5
1.6
1.0
Minimum Guaranteed Load Current
800
0.800
2.25
2.4
100
0.3
0.3
1.25
0.01
96
92
900
0.816
±4
±5
3.0
3.2
0.6
0.6
1.50
3
V
%
V*µs
V*µs
ns
Ω
Ω
A
µA
%
mA
25° C, IO=200mA Close Loop.
LI = 10µH,
Measured at VIN=5.5V, no
load, TAMB = 0° C to 70° C
♦
Measured at VIN=3.6V, 200mA
load, Close Loop
♦
Close Loop, LI = 10µH, COUT
= 22µF
Inductor current limit tripped,
♦
VFB=0.5V Measured at VOUT
= 2V
T_AMB=27° C
♦
IPMOS = 200mA
♦
INMOS = 200mA
♦
VFB=0.5V
♦
D0=D1=0
VOUT=2.5V, IO=200mA
T_AMB=27° C
VOUT=3.3V, IO=800mA
T_AMB=27° C
♦
VIN Quiescent Current
VIN Shutdown Current
VOUT Quiescent Current
VOUT Shutdown Current
20
30
µA
1
500
nA
2
5
µA
1
500
nA
♦
VOUT=3.3V, VIN=3.6V and
VIN= 5.5V
♦
D1=D0=0V
♦
VOUT = 3.3V
♦
D1=D0=0V
2.55
2.70
2.85
UVLO Undervoltage Lockout
Threshold, VIN falling
2.70
2.85
3.00
V
2.85
3.00
3.15
♦
D1=0V, D0=VIN
♦
D1=VIN, D0=0V
♦
D1=VIN, D0=VIN
UVLO hysteresis
PWRGD Low Output Voltage
40
mV
0.4
V
T_AMB=27° C
♦
VIN=3.3V, ISINK=1mA
PWRGD Leakage Current
PWRGD Rising Threshold
PWRGD Hysterisis
D1,D0 Leakage Current
1
µA
-6
%
80
mV
1
500
nA
♦
VPWRGD =3.6V
FB Set Voltage -6%,
T_AMB=27° C
T_AMB=27° C
♦
0.60
0.90
D1,D0 Input Threshold Voltage
V
1.25
1.8
♦
High to Low Transition
♦
Low to High Transition
FB Leakage Current
Date: 05/25/04
1
100
nA
SP6654 High Efficiency 800mA Synchronous Buck Regulator
2
FB=1V
© Copyright 2004 Sipex Corporation