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ISL85012 Datasheet(PDF) 6 Page - Renesas Technology Corp

Part No. ISL85012
Description  12A, 3.8V to 18V Input, Synchronous Buck Regulator
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Maker  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
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ISL85012 Datasheet(HTML) 6 Page - Renesas Technology Corp

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ISL85012
FN8677 Rev.2.00
Page 6 of 19
Mar 17, 2017
ERROR AMPLIFIER
FB Regulation Voltage
VFB
0.588
0.600
0.612
V
FB Leakage Current
VFB = 0.6V
10
nA
Open Loop Bandwidth
BW
5.5
MHz
Gain
70
dB
Output Drive
High-side clamp = 1.5V, low-side clamp = 0.4V
±100
µA
Current-Sense Gain
RT
0.050
0.055
0.063
Ω
Slope Compensation
Se
Tested at 600kHz
470
mV/µs
SOFT-START
Default Soft-Start Time
1.9
3
4.7
ms
PG
Output Low Voltage
IPG = 5mA
0.3
V
PG Pin Leakage Current
0.01
µA
PG Lower Threshold
Percentage of output regulation
81
87
92
%
PG Upper Threshold
Percentage of output regulation
110
116
121
%
PG Thresholds Hysteresis
SYNC is short-to-GND
3
%
Delay Time
Rising edge
1.5
ms
Falling edge
23
µs
FAULT PROTECTION
VIN/PVIN Overvoltage Lockout
Rising edge
19
20.5
22
V
Falling edge
18
19.5
21
V
Hysteresis
1
V
Positive Overcurrent Protection Threshold
IPOCP High-side OCP
15.5
18
19.5
A
Low-side OCP
21
Negative Overcurrent Protection Threshold
INOCP Current forced into PHASE node, high-side MOSFET is off
-10.8
-7.5
-5.5
A
Hiccup Blanking Time
150
ms
FB Overvoltage Threshold
110
116
121
%
Thermal Shutdown Temperature
TSD
Rising threshold
160
°C
THYS
Hysteresis
10
°C
POWER MOSFET
High-Side
RHDS IPHASE = 900mA
15
Low-Side
RLDS
IPHASE = 900mA
7
PHASE Pull-Down Resistor
EN = GND
22.5
NOTE:
11. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
Electrical Specifications Unless otherwise noted, all parameter limits are established over the recommended operating conditions and
the typical specification are measured at the following conditions: TJ = -40°C to +125°C, VIN = 4.5V to 18V, unless otherwise noted. Typical values are at
TA = +25°C. Boldface limits apply across the operating temperature range, -40°C to +125°C. (Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
(Note 11)TYP
MAX
(Note 11)UNIT


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