MAX1566-MAX1567 Datasheet, PDF (6/35 Pages) Maxim Integrated Products – Six-Channel, High-Efficiency, Digital Camera Power Supplies

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