1.2A, 1.6MHz, High Efficiency
SGM6019
Synchronous Step-Down Converter
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = VEN = VMODE = 3.6V, VRSI = 0V, L1 = 2.2µH, CIN = COUT = 10µF, IOUT = 0A, TA = +25℃, unless otherwise noted.
Output Voltage vs. Input Voltage
Output Voltage vs. Input Voltage
1.515
1.510
1.505
1.500
1.495
1.490
1.485
1.480
2.520
2.515
2.510
2.505
2.500
2.495
2.490
TA = +25℃
TA = +25℃
TA = -40℃
TA = +85℃
TA = -40℃
TA = +85℃
VMODE = VIN, VOUT = 1.5V, IOUT = 600mA
VMODE = VIN, VOUT = 2.5V, IOUT = 600mA
2.7
3.4
4.1
4.8
5.5
2.7
3.4
4.1
4.8
5.5
Input Voltage (V)
Input Voltage (V)
Sw itching Frequency vs. Input Voltage
Soft-Start to PWM Mode
1.70
1.65
1.60
1.55
1.50
1.45
VSW
TA = +25℃
VOUT
TA = +85℃
TA = -40℃
IL
V
IN = 3.6V, VOUT = 1.5V, IOUT = 600mA
VEN
2.7
3.4
4.1
4.8
5.5
Input Voltage (V)
Time (200μs/div)
Soft-Start to Skip Mode
Steady-State in Skip Mode
VSW
VSW
VOUT
IL
AC Coupled
VOUT
VIN = 4.2V, VOUT = 1.6V, IOUT = 0.01mA
VIN = 5V, VOUT = 1.8V, IOUT = 35mA
Time (1ms/div)
Time (4μs/div)
SG Micro Corp
www.sg-micro.com
SEPTEMBER 2013
6
SGMICRO [ Shengbang Microelectronics Co, Ltd ]
