ST1937 STANSON [Stanson Technology], ST1937 Datasheet - Page 4

• Manufacturer Part Number: ST1937
• Description: DC-DC Step-Up Converter for White LED Driver
• Manufacturer: STANSON [Stanson Technology]

ELECTRICAL CHARACTERISTICS (Ta=25℃, VIN=3.6V, unless otherwise specified.)
STANSON TECHNOLOGY
120 Bentley Square, Mountain View, Ca 94040 USA
www.stansontech.com
ILEAKAGE Switch Leakage Current
Symbol
SHDNH
SHDNL
Vcesat
ISHDN
UVLO
Fosc
Iout
VIN
IFB
IS
D
Operating Voltage
Feedback Voltage
FB Pin Bias Current
Supply Current
Switching Frequency
Maximum Duty Cycle
Switch Current Limit
Switch Vcesat
SHDN Pin Current
SHDN Voltage High
SHDN Voltage Low
Parameter
ISW=100mA, Duty
Cycle = 66%
Rin=10MΩ
VSHDN > 0V
VSHDN = 0V
VSW= 5V
ISW = 50mA
DC-DC Step-Up Converter for White LED Driver
Conditions
Min. Typ. Max. Unit
2.4
0.8
1.5
0.01
100
100
320
150
2.8
0.1
1.2
ST1937 2005. V1
85
1
ST1937
3.5
1.0
1.6
0.4
12
5
MHz
mV
mA
mA
mV
nA
μA
μA
nA
%
V
V
V