L6727 STMicroelectronics, L6727 Datasheet - Page 7

• Manufacturer Part Number: L6727
• Description: IC PWM CTLR SGL PHASE SO-8
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L6727

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adj to 0.8V
• Frequency - Switching: 300kHz
• Voltage - Input: 1.5 ~ 12 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Output Current: 1.5 A
• Input Voltage: - 0.3 V to + 15 V
• Switching Frequency: 300 KHz
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 80 %
• For Use With: 497-8266 - BOARD EVAL BASED ON L6727497-6258 - BOARD EVAL 1PH STPDWN CONV L6727
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

L6727
3.2
Table 5.
Recommended operating conditions
Supply current and power-ON
Oscillator
Reference
Error amplifier
Gate drivers
Overcurrent protection
Symbol
R
R
GBWP
I
ΔV
I
I
UVLO
I
OCSET
UGATE
d
LGATE
UGATE
BOOT
F
V
LGATE
DIS
V
I
SR
I
MAX
A
CC
SW
FB
OSC
CC
IN
0
Device supply voltage
Conversion input voltage
VCC supply current
BOOT supply current
VCC turn-ON
Hysteresis
Main oscillator accuracy
PWM ramp amplitude
Maximum duty cycle
Output voltage accuracy
DC gain
Gain-bandwidth product
Slew-rate
Input bias current
Disable threshold
HS source current
HS sink resistance
LS source current
LS sink resistance
OCSET current source
Electrical characteristics
V
Electrical characteristics
CC
= 12 V; T
(1)
Parameter
(1)
A
= -20 °C to +85 °C, unless otherwise specified.
(1)
See
V
UGATE and LGATE = OPEN
UGATE = OPEN; PHASE to GND
VCC rising
0 °C to +70 °C
V
V
Sourced from FB
COMP falling
BOOT - PHASE = 5 V to 12 V
BOOT - PHASE = 5 V to 12 V
VCC = 5 V to 12 V
VCC = 5 V to 12 V
Sunk from COMP pin, before SS
OUT
OUT
CC
Figure 1
< 7.0 V
= 0.8 V, T
= 0.8 V
Doc ID 12933 Rev 4
Test conditions
A
= 0 °C to 70 °C
Min.
0.43
270
250
-1.5
4.1
80
55
-1
Electrical specifications
Typ.
0.65
300
300
120
100
0.5
0.2
1.5
0.5
1.5
1.1
1.5
15
60
8
6
-
Max.
13.2
13.2
19.0
330
350
4.1
1.5
65
1
MHz
V/μs
Unit
kHz
kHz
mA
mA
dB
nA
μA
%
%
%
Ω
Ω
V
V
V
V
V
V
V
A
A
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