Owner manual

MAX1566/MAX1567
Six-Channel, High-Efficiency, Digital
Camera Power Supplies
6 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS
(V
PVSU
= V
PV
= V
PVM
= V
PVSD
= V
INDL2
= 3.6V, T
A
= -40°C to +85°C, unless otherwise noted.)
PARAMETER CONDITIONS MIN MAX UNITS
GENERAL
Input Voltage Range (Note 2) 0.7 5.5 V
Step-Up Minimum Startup
Voltage (Note 2)
I
LOAD
< 1mA, T
A
= +25°C; startup voltage tempco is
-2300ppm/°C (typ) (Note 3)
1.1 V
Shutdown Supply Current into PV PV = 3.6V 10 µA
Supply Current into PV with Step-
Up Enabled
ONSU = 3.6V, FBSU = 1.5V
(does not include switching losses)
400 µA
Supply Current into PV with Step-
Up and Step-Down Enabled
ONSU = ONSD = 3.6V, FBSU = 1.5V, FBSD = 1.5V
(does not include switching losses)
600 µA
Supply Current into PV with Step-
Up and Main Enabled
ONSU = ONM = 3.6V, FBSU = 1.5V, FBSD = 1.5V
(does not include switching losses)
600 µA
Total Supply Current from PV and
PVSU with Step-Up and One
AUX Enabled
ONSU = ON1 = 3.6V, FBSU = 1.5V, FB2 = 1.5V
(does not include switching losses)
550 µA
REFERENCE
Reference Output Voltage I
REF
= 20µA 1.23 1.27 V
Reference Load Regulation 10µA < I
REF
< 200µA 10 mV
Reference Line Regulation 2.7V < PVSU < 5.5V 5 mV
OSCILLATOR
OSC Discharge Trip Level Rising edge 1.225 1.275 V
OSC Discharge Resistance OSC = 1.5V, I
OSC
= 3mA 80 Ω
STEP-UP DC-TO-DC CONVERTER
Step-Up Startup-to-Normal
Operating Threshold
Rising edge or falling edge (Note 4) 2.30 2.65 V
Step-Up Voltage Adjust Range 3.0 5.5 V
FBSU Regulation Voltage 1.231 1.269 V
FBSU to CCSU
Transconductance
FBSU = CCSU 80 185 µS
FBSU Input Leakage Current FBSU = 1.25V -100 +100 nA
Step-Up Maximum Duty Cycle FBSU = 1V 80 90 %
PVSU Leakage Current V
LX
= 0V, PVSU = 3.6V 5 µA
LXSU Leakage Current V
LX
= V
OUT
= 3.6V 5 µA
N channel 150
Switch On-Resistance
P channel 250
mΩ
N-Channel Current Limit 1.8 2.4 A
MAIN DC-TO-DC CONVERTER
Main Step-Up Voltage
Adjust Range
SUSD = PVSU 3.0 5.5 V