SP6660 Datasheet, PDF (18/22 Pages) Sipex Corporation – 200mA Charge Pump Inverter or Doubler

V_IN
GND
CAP+
+ _C3
150µF
Tant.
+
C1
150µF
Tant.
DOUBLER
D1
1 _FC SP6660 _V+ 8
2 _CAP+
OSC ⁷
3 GND
LV 6
4 CAP-
OUT 5
C2
150µF
+ Tant.
V_OUT
GND
FC
1 V_IN LP2985
2 GND
5 _VOUT
3 ON/OFF_N BYPASS 4
+5
C4
4.7µF
Cer.
GND
C5
10nF
Cer.
Figure 28. The SP6660 and a LDO Regulator Connected as a 3V Input to Regulated 5V Output Converter.
APPLICATIONS
The SP6660 Evaluation Board provides a 3V to
5V 160mA DC to DC Converter using the
SP6660 Doubler Circuit and a 5V LDO
Regulator.
SP6660 Ripple
V = 3.2V
IN
V_OUT6660 = 5.53V
V_OUT LDO = 4.95V
I_LOAD = 150mA
5VLDO Ripple
Figure 29. Ripple and Noise output of the SP6660 and a
LDO Regulator with I_LOAD = 150mA
100
90
80
70
60
1
Vin = 3.0V
Vin = 3.3V
Vin = 3.6V
10
100
Load Current (mA)
1000
g
100
90
IL = 150mA
80
70
60
2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2
Input Voltage (V)
Figure 30. Power Efficiency vs Input Voltage - SP6660
Doubler with 5V LDO
200
150
6660 Ripple
IL = 150mA
LDO Ripple
100
IL = 150mA
50
0
2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2
Input Voltage (V)
Figure 31. Power Efficiency vs Load Current - SP6660
Doubler with 5V LDO
Figure 32. Ripple Voltage vs Input Voltage -
SP6660 Doubler with 5V LDO
SP6660DS/11
SP6660 200mA Charge Pump Inverter or Doubler
18
© Copyright 2000 Sipex Corporation