MAX1947ETA18+T Maxim Integrated Products, MAX1947ETA18+T Datasheet - Page 3

• Manufacturer Part Number: MAX1947ETA18+T
• Description: IC DC-DC CONV 1.8V 8-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Step-Up (Boost)r

Specifications of MAX1947ETA18+T

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 1.8V
• Current - Output: 250mA
• Frequency - Switching: Up to 2MHz
• Voltage - Input: 0.7 ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Power - Output: 1.95W
• Output Voltage: 1.8 V
• Output Current: 273 mA
• Input Voltage: 0.7 V to 3.6 V
• Supply Current: 70 uA
• Switching Frequency: 650 KHz
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MAX1947ETA18+T

ELECTRICAL CHARACTERISTICS (continued)
(V
Note 2: Limits are 100% production tested at T
Note 3: When BATT is greater than the output-voltage set point, the part is in track mode (see the Track Mode section).
Startup to Normal-Mode Output
Transition Voltage
NFET Current Limit
PFET Turn-Off Current
Internal NFET
On-Resistance
Internal PFET
On-Resistance
LX Leakage Current
SHUTDOWN MODE
Shutdown Supply Current
SHDN Input Voltage
SHDN Input Bias Current
OUT Discharge Resistance in
Shutdown
RESET OUTPUT
Reset OUT Voltage Trip Level
Minimum V
Reset Timeout
RESET Output Voltage
BATT
= 1.5V, T
PARAMETER
OUT
for Valid Reset
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
_______________________________________________________________________________________
Step-Up DC-DC Converter with RESET
50mV hysteresis, rising edge
T
T
T
T
I
I
SHDN = GND, V
V
SHDN = GND
V
V
SHDN = OUT or GND, T
SHDN = OUT or GND, T
SHDN = GND
V
I
I
LX
LX
SINK
SOURCE
A
A
A
A
LX
IH
IL
OUT
= 0°C to +85°C
= -40°C to +85°C
= 0°C to +85°C
= -40°C to +85°C
= 100mA
= 100mA
= 3.6V
= 200µA
falling, 1% hysteresis
= 200µA
A
= +25°C. Limits over the operating temperature range are guaranteed by design.
OUT
MAX1947ETA18
MAX1947ETA25
MAX1947ETA30
MAX1947ETA33
MAX1947ETA18
MAX1947ETA25
MAX1947ETA30
MAX1947ETA33
= 0V,
CONDITIONS
A
A
Low Input/Output Voltage
= +25°C
= +85°C
T
T
A
A
= +25°C
= +85°C
A
= +25°C.) (Note 2)
0.8 x V
V
0.8 x
1.40
MIN
600
580
BATT
0.9
15
10
87
65
OUT
TYP
1.62
0.22
0.17
0.15
0.35
0.28
0.25
800
800
500
140
0.3
0.5
0.1
75
75
90
1
2
1
5
0.18 x
V
MAX
1000
1000
1000
1.73
0.44
0.34
0.56
150
150
100
235
BATT
0.6
0.3
1.0
0.7
0.5
0.3
93
1
4
UNITS
mA
mA
ms
µA
µA
nA
Ω
Ω
Ω
%
V
V
V
V
3