SP6654 Datasheet, PDF (2/17 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 +0.3V
IN
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
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.
PARAMETER
Input Voltage Operating
Minimum Output Voltage
MIN
UVLO
1.0
TYP
MAX
5.5
UNITS
CONDITIONS
V
♦
Result of I measurement at
Q
V_IN = PV_IN = 5.5V
V
♦ _{FB Set Voltage, Vr}
FB Set Voltage, Vr
Overall Accuracy
On-Time Constant - KON Min,
T_ON = KON/(V_IN-V_OUT)
Off-Time Min, T = K /V
OFF
OFF OUT
Constant - K_OFF
Off-Time Blanking
0.784 0.800 0.816
±4
±5
1.5 2.25 3.0
1.6
2.4
3.2
100
V
25° C, IO = 200mA Close
Loop. LI = 10µH,
Measured at V_IN = 5.5V, no
load, T = 0° C to 70° C
AMB
%
♦
Measured at V_IN = 3.6V, 200mA
load, Close Loop
V*µs
♦
Close Loop, LI = 10µH, C_OUT =
22µF
V*µs
ns
♦
Inductor current limit tripped,
V_FB = 0.5V Measured at V_' = 2V
T_AMB=27° C
PMOS Switch Resistance
0.3 0.6
♦ IPMOS = 200mA
NMOS Switch Resistance
0.3 0.6
♦ INMOS = 200mA
Inductor Current Limit
LX Leakage Current
1.0 1.25 1.50
A
♦ V_FB = 0.5V
0.01
3
µA ♦ D0 = D1 = 0
Power Efficiency
V_OUT = 2.5V, IO = 200mA
96
T_AMB = 27° C
%
92
V = 3.3V, IO = 800mA
OUT
T_AMB=27° C
Minimum Guaranteed Load Current 800 900
mA ♦
V_IN Quiescent Current
V_IN Shutdown Current
V_OUT Quiescent Current
V_OUT Shutdown Current
20
30
µA
♦ ^{VOUT = 3.3V, VIN = 3.6V and}
V_IN = 5.5V
1
500
nA ♦ D1 = D0 = 0V
2
5
µA ♦ V_OUT = 3.3V
1
500
nA ♦ D1 = D0 = 0V
Date: 2/1/05
SP6654 High Efficiency 800mA Synchronous Buck Regulator
2
© Copyright 2005 Sipex Corporation