SP6649 Datasheet, PDF (2/9 Pages) Sipex Corporation – Ultra-low Quiescent Current, High Efficiency Boost DC-DC Regulator

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.
LX, Vo, V_BATT , LBON, FB to GND pin ................................. -0.3 to 6.0V
SHDN, LBI ............................................................ -0.3V to V_BATT +0.5V
Vo, GND, LX Current .................................................................... 1.3A
Reverse V_BATT Current ............................................................... 220mA
Forward V_BATT Current ............................................................... 500mA
Storage Temperature .................................................. -65 °C to 150°C
Operating Temperature ................................................ -40°C to +85°C
Lead Temperature (Soldering, 10 sec) ....................................... 300 °C
ESD Rating ........................................................................... 2kV HBM
SPECIFICATIONS
V_BATT=V_SHDN = 1.3V, V_FB=0V, I_LOAD = 0mA, T_AMB= -40°C to +85°C, V_OUT = +3.3V, typical values at 27°C unless otherwise
noted.
PARAMETER
MIN
Input Voltage Operating Range, V_BATT 0.7
Under Voltage Lock-out/UVLO
Start-up Input Voltage, V_BATT
Output Voltage, V_O
3.16
Quiescent Current into V_O, I_QO
Quiescent Current into V_BATT, I_QB
Shutdown Current into V_O, I_SDO
Shutdown Current into V_BATT, I_SDB
Efficiency, R_LIM = 4.0K
Efficiency, R_LIM = 1.87K
Inductor Current Limit, I_PK
1.0
Output Current
Minimum Off-Time Constant K_OFF
Maximum On-Time Constant K_ON
N_MOS Switch Resistance
P_MOS Switch Resistance
FB Set Voltage, V_FB
FB Input Current
LBI Falling Trip Voltage
LBI Hysteresis
Low Output Voltage for LBON, V_OL
Leakage current for LBON
SHDN Input Voltage
V_IL
V_IH
V_IL
V_IH
SHDN Input Current
1.20
0.594
1.0
2.0
TYP
0.62
0.85
3.30
12
20
1
200
85
91
85
92
1.2
250
700
150
400
1.1
3.3
0.30
0.30
1.25
1
0.625
25
1
MAX
4.5
0.9
3.44
22
500
500
500
1.4
0.6
0.6
1.30
100
0.656
0.4
500
0.25
0.5
100
UNITS
V
V
V
V
µA
nA
nA
nA
%
%
%
%
A
mA
mA
mA
mA
V*µs
V*µs
V
nA
V
mV
V
nA
V
nA
CONDITIONS
After Startup
R_LOAD = 3k
3.3V V_O preset
V_OUT = 3.3V, V_FB = 1.5V, Toggle SHDN
V_OUT = 3.3V, V_FB = 1.5V
V_SHDN = 0V
V_SHDN = 0V, V_BATT = 2.6V
V_BATT = 1.3V, I_OUT = 50mA
V_BATT = 2.6V, I_OUT = 100mA
V_BATT = 1.3V, I_OUT = 100mA
V_BATT = 2.6V, I_OUT = 200mA
R_LIM = 1.17k , I _PK = 1400/R_LIM
V_BATT = 1.3V, R_LIM = 1.17k
V_BATT = 2.6V, R_LIM = 1.17k
V_BATT = 1.3V, R_LIM = 1.87k
V_BATT = 2.6V, R_LIM = 1.87k
t_OFF K _OFF / (V_OUT- V_BATT)
t_ON K _ON / V_BATT
I_NMOS = 100mA
I_PMOS = 100mA
External feedback
V_FB =1.3V
V_BATT = 1.3V, Isink = 1mA
V_BATT = 1.3V, V_LBON = 3.3V
V_BATT = 1.3V
V_BATT = 1.3V
V_BATT = 2.6V
V_BATT = 2.6V
Rev:001 Date:11/20/03 SP6649 Ultra-low Quiescent Current, High Efficiency Boost DC-DC Regulator
2
© Copyright 2002 Sipex Corporation