参数资料
型号: L6727
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: 1.5 A SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO8
封装: LEAD FREE, SOP-8
文件页数: 32/34页
文件大小: 974K
代理商: L6727
L6727
Electrical specifications
Doc ID 12933 Rev 4
7/34
3.2
Electrical characteristics
VCC = 12 V; TA = -20 °C to +85 °C, unless otherwise specified.
Table 5.
Electrical characteristics
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Recommended operating conditions
VCC
Device supply voltage
4.1
13.2
V
VIN
Conversion input voltage
13.2
V
VCC < 7.0 V
19.0
V
Supply current and power-ON
ICC
VCC supply current
UGATE and LGATE = OPEN
6
mA
IBOOT
BOOT supply current
UGATE = OPEN; PHASE to GND
0.5
mA
UVLO
VCC turn-ON
VCC rising
4.1
V
Hysteresis
0.2
V
Oscillator
FSW
Main oscillator accuracy
0
°C to +70 °C
270
300
330
kHz
250
300
350
kHz
ΔV
OSC
PWM ramp amplitude
1.5
V
dMAX
Maximum duty cycle
80
%
Reference
Output voltage accuracy
VOUT = 0.8 V, TA = 0 °C to 70 °C
-1
-
1
%
VOUT = 0.8 V
-1.5
1.5
%
Error amplifier
A0
DC gain(1)
120
dB
GBWP
Gain-bandwidth product(1)
15
MHz
SR
Slew-rate(1)
8V/
μs
IFB
Input bias current
Sourced from FB
100
nA
DIS
Disable threshold
COMP falling
0.43
0.5
V
Gate drivers
IUGATE
HS source current
BOOT - PHASE = 5 V to 12 V
1.5
A
RUGATE
HS sink resistance
BOOT - PHASE = 5 V to 12 V
1.1
Ω
ILGATE
LS source current
VCC = 5 V to 12 V
1.5
A
RLGATE
LS sink resistance
VCC = 5 V to 12 V
0.65
Ω
Overcurrent protection
IOCSET
OCSET current source
Sunk from COMP pin, before SS
55
60
65
μA
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