1.2A, 1.6MHz, High Efficiency
SGM6019
Synchronous Step-Down Converter
ELECTRICAL CHARACTERISTICS
(VIN = VEN = VMODE = 3.6V, L1 = 2.2µH, CIN = COUT = 10µF, IOUT = 0A, Full = -40℃ to +85℃, typical values are at TA = +25℃,
unless otherwise noted.)
PARAMETER
Input Voltage Range
SYMBOL
CONDITIONS
TEMP
Full
MIN
TYP
MAX
UNITS
V
VIN
IFB
2.7
5.5
Feedback Input Bias Current
VFB = 0.75V
0.1
0.800
0.800
30
µA
+25℃
0.777
0.774
0.823
0.826
60
TA = 0℃ to +85℃
Regulated Feedback Voltage
VFB
V
Full
MODE = VIN, no load at the output
µA
mA
µA
Quiescent Current
IQ
+25℃
MODE = AGND, no load at the
output
3.5
4.5
Shutdown Current
ISD
VIN = 5.5V, EN = LOW
Rising
0.05
2.35
2.25
1
+25℃
+25℃
2.68
Under-Voltage Lockout Threshold
VUVLO
V
Falling
2.1
VIN = 3.6V, IOUT = 200mA, VOUT
1.6V
=
Output Voltage Accuracy
Full
-3.7
3.7
%
Output Voltage Line Regulation
Maximum Output Current
ΔVOUT
VIN = 2.7V to 5.5V, VOUT = 1.6V
Full
0.2
%/V
A
1.2
+25℃
+25℃
Error Amplifier Transconductance
gm
Design info only
13
µA/V
VIN = 3.6V, IOUT = 200mA
VIN = 2.7V, IOUT = 200mA
VIN = 3.6V, IOUT = 200mA
VIN = 2.7V, IOUT = 200mA
0.15
0.18
0.12
0.13
0.30
0.32
0.30
0.32
P-Channel MOSFET On-Resistance
N-Channel MOSFET On-Resistance
Ω
+25℃
Ω
Ω
+25℃
+25℃
N-Channel Bleeding
MOSFET On-Resistance
90
P-Channel MOSFET Peak Current Limit
Maximum Duty Cycle
IPK
VIN = 5.5V
1.40
1.3
1.75
100
1.6
2.10
1.8
A
%
+25℃
+25℃
Full
PWM Switching Frequency
SW Minimum On Time
fS
MHz
ns
MODE = LOW (forced PWM mode)
Sinking 1mA, VFB = 0.7V
PG = VIN = 3.6V
160
1.1
+25℃
+25℃
+25℃
+25℃
+25℃
Soft Start-Up Time
ms
V
PG Pin Output Low Voltage
PG Pin Delay Time
0.3
260
1
170
215
ms
µA
PG Pin Leakage Current
0.01
Minimum Supply Voltage for
Valid PG Signal
1.2
89
V
+25℃
+25℃
+25℃
+25℃
+25℃
Percentage of nominal regulation
voltage
Percentage of nominal regulation
voltage
Percentage of nominal regulation
voltage
Percentage of nominal regulation
voltage
Internal PGOOD Low Rising Threshold
Internal PGOOD Low Falling Threshold
Internal PGOOD High Rising Threshold
Internal PGOOD High Falling Threshold
92
88
95
91
%
%
%
%
85
109
105.5
112
115
111.5
108.5
50
Internal PGOOD Delay Time
Logic Input Low Voltage
Logic Input High Voltage
Logic Input Leakage Current
Thermal Shutdown
µs
V
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
VIL
VIH
0.4
1
1.5
V
Pulled up to 5.5V
0.1
150
15
µA
℃
℃
Thermal Shutdown Hysteresis
SG Micro Corp
www.sg-micro.com
SEPTEMBER 2013
4
SGMICRO [ Shengbang Microelectronics Co, Ltd ]
