MAX1705 Maxim, MAX1705 Datasheet - Page 4

• Manufacturer Part Number: MAX1705
• Description: 1- to 3-Cell / High-Current / Low-Noise / Step-Up DC-DC Converters with Linear Regulator
• Manufacturer: Maxim

ELECTRICAL CHARACTERISTICS (continued)
(V
LX = open, T
1- to 3-Cell, High-Current, Low-Noise,
Step-Up DC-DC Converters with Linear Regulator
ELECTRICAL CHARACTERISTICS
(V
LX = open, T
4
Internal Oscillator Frequency
External Oscillator
Synchronization Range
Oscillator Maximum Duty Cycle
Minimum CLK/SEL Pulse
Maximum CLK/SEL
Rise/Fall Time
DC-DC CONVERTER
REFERENCE
DC-DC CONVERTER
FB Regulation Voltage
OUT Voltage in Track Mode
Start-Up to Normal Mode
Transition Voltage
Supply Current in Shutdown
Supply Current in
Low-Power Mode
Supply Current in
Low-Noise Mode
Reference Output Voltage
Switch On-Resistance
N-Channel MOSFET
Current Limit
P-Channel Synchronous-
Rectifier Turn-Off Current
OUT
OUT
_______________________________________________________________________________________
= V
= V
PARAMETER
PARAMETER
POUT
POUT
A
A
= 0°C to +85°C, unless otherwise noted. Typical values are at T
= -40°C to +85°C, unless otherwise noted, Note 4.)
= V
= V
LBP
LBP
= 3.6V, CLK/SEL = FB = LBN = LBO = ONA = ONB = TRACK = GND, REF = open (bypassed with 0.22µF),
= 3.6V, CLK/SEL = FB = LBN = LBO = ONA = ONB = TRACK = GND, REF = open (bypassed with 0.22µF),
SYMBOL
SYMBOL
I
I
I
I
OUT
OUT
OUT
LIM
CLK/SEL = OUT
CLK/SEL = OUT
TRACK = OUT, V
ONA = 0V, ONB = OUT, measure I
CLK/SEL = 0V, FB = FBLDO = 1.5V, no load
CLK/SEL = OUT, V
no load
I
N-channel, I
P-channel, I
CLK/SEL = OUT
CLK/SEL = 0V
CLK/SEL = 0V
REF
= 0µA
LX
LX
= 100mA
= 100mA
CONDITIONS
CONDITIONS
LDO
FB
> 2.3V
= V
FBLDO
CLK/SEL = 0V
CLK/SEL = OUT
CLK/SEL = OUT
MAX1705
MAX1706
MAX1705
MAX1706
A
= 1.5V,
= +25°C.)
OUT
V
1.215
1.235
1000
MIN
LDO
MIN
260
200
550
250
250
0.2
2.0
80
20
+
TYP
TYP
300
200
100
86
V
1.251
LDO
1.265
MAX
0.4
MAX
1700
0.45
0.28
0.50
340
400
190
360
950
570
570
120
2.3
90
20
+
UNITS
UNITS
kHz
kHz
mA
mA
ns
ns
µA
µA
µA
%
Ω
V
V
V
V