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PDF SD6271 Data sheet ( Hoja de datos )
| Número de pieza | SD6271 | |
| Descripción | 2A Step-Up Current Mode PWM Converter | |
| Fabricantes | SHOUDING | |
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SHOUDING
SD6271
1MHz, 2A Step-Up Current Mode PWM Converter
General Description
The SD6271 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.25Ω
power MOSFET make this regulator highly power efficient. The internal compensation network also
minimizes as much as 6 external component counts. The non-inverting input of error amplifier connects
to a 0.6V precision reference voltage and internal soft-start function can reduce the inrush current.
The SD6271 is available in the SOT23-6L package and provides space-saving PCB for the
application fields.
Features
Adjustable Output up to 24V
Internal Fixed PWM frequency: 1.0MHz
Precision Feedback Reference Voltage: 0.6V (±2%)
Internal 0.25Ω, 2A, 26V Power MOSFET
Shutdown Current: 0.1μA
Over Voltage Protection
Over Temperature Protection
Adjustable Over Current Protection: 0.5A ~ 2.5A
Package: SOT23-6L
Applications
Chargers
LCD Displays
Digital Cameras
Handheld Devices
Portable Products
Typical Application Circuit
SD6271
1/9
1 page  
SHOUDING
SD6271
Recommended Operating Conditions
Parameter
Symbol
Conditions
Supply Voltage
VIN
Operating Temperature Range
TA Ambient Temperature
Min.
2.6
-40
Typ.
Max.
5.5
+85
Unit
V
°C
DC Electrical Characteristics (VCC=3.3V, TA=25°C,unless otherwise specified)
Parameter
Symbol
Conditions
Min. Typ. Max.
System Supply Input
Input Supply Range
Under Voltage Lockout
UVLO Hysteresis
Quiescent Current
Average Supply Current
Shutdown Supply Current
VCC
VUVLO
ICC VFB=0.66V, No switching
ICC VFB=0.55V, Switching
ICC VEN=GND
2.6 5.5
2.2
0.1
0.16
2.84
0.1
Oscillator
Operation Frequency
Frequency Change with Voltage
Maximum Duty Cycle
FOSC VFB=1.0V
△f / △V VCC=2.7V to 5.5V
TDUTY
0.8 1.0 1.2
5
90
Reference Voltage
Feedback Voltage
VREF
0.588 0.6 0.612
Line Regulation
VCC=2.7V～5.5V
0.05
Enable Control
Enable Voltage
VEN
0.96
Shutdown Voltage
VEN
0.6
MOSFET
On Resistance of Driver
RDS (ON) ILX=2A
0.25
Protection
OVP Threshold Voltage
OVP Sink Current
OCP Current
Adjustable OCP Current
OTP Temperature
VOVP
ISINK
IOCP
IOCP
TOTP
With External Resistor：
10k~100k
27
5
2 2.6
0.5 2.6
+150
Unit
V
V
V
mA
mA
µA
MHZ
%
%
V
%/V
V
V
Ω
V
µA
A
A
°C
5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet SD6271.PDF ] | |
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