參數(shù)資料
型號(hào): ISL8560
廠商: Intersil Corporation
元件分類(lèi): 基準(zhǔn)電壓源/電流源
英文描述: DC/DC Power Switching Regulator
中文描述: DC/DC電源開(kāi)關(guān)穩(wěn)壓器
文件頁(yè)數(shù): 3/17頁(yè)
文件大?。?/td> 1016K
代理商: ISL8560
3
FN9244.6
September 18, 2007
Modulator Gain
V
VIN
/
Δ
V
OSC
9
-
Min OFF Time
150
300
ns
REFERENCE AND SOFT-START
Internal Reference Voltage
V
REF
1.21
V
Soft-Start Current
I
SS
8
10
12
μ
A
Soft-Start Threshold
V
SOFT
0.8
V
ERROR AMPLIFIER
Transconductance
g
m
3.9
5.7
7.2
mS
Gain-Bandwidth Product
GBW
15
MHz
Slew Rate
SR
6
V/
μ
s
COMP Pin Drive
I
COMP
±200
μ
A
Internal Feedback Voltage
V
FB
T
A
= -40°C to +85°C, V
IN
= 9.0V to 60V
1.194
1.210
1.222
V
Internal Feedback Bias Current
I
FB
T
A
= -40°C to +85°C, V
FB
= 1.20V
±50
±100
nA
OVERCURRENT PROTECTION
Dynamic Current Limit ON Time
t
OCON
16
Clock
pulses
Dynamic Current Limit OFF Time
t
OCOFF
4
SS cycle
Switch Current Limit
I
LIMIT
T
A
= +25°C
3.2
4.0
4.8
A
POWER GOOD (OPEN DRAIN)
Power-Good Lower Threshold
V
PG-
Fraction of the V
OUT
set point; ~3
μ
s noise filter
Fraction of the V
OUT
set point; ~3
μ
s noise filter
85
89
%
V
PG+
111
115
%
PGOOD Leakage Current
I
PGLKG
V
PULLUP
= 5.5V
1
μ
A
PGOOD Voltage Low
I
PGOOD
= 4mA
0.5
V
MOSFET
Switch ON Resistance
r
DS(ON)
I
OUT
= 2A, V
BOOT
= V
IN
+ 5.0V, Tested at wafer
level
0.19
0.355
Ω
EN
Input HIGH Level (Asserted)
VINHIGH
2.6
V
Input LOW Level (Unasserted)
VINLOW
1.2
V
Input Current HIGH
I
ENHIGH
V
IN
= 24V
25
μ
A
Input Current LOW
I
ENLOW
V
IN
= 24V
25
μ
A
SYNC
Input HIGH Level (Asserted)
VINHIGH
2.6
V
Input LOW Level (Unasserted)
VINLOW
1.2
V
Input Current HIGH
I
SYNCHIGH
0.2
μ
A
Input Current LOW
I
SYNCLOW
0.2
μ
A
THERMAL SHUT-DOWN
Thermal Shut-down Temperature
Rising Threshold
150
°C
Thermal Shut-down Hysteresis
15
°C
Electrical Specifications
Unless otherwise specified the specifications listed in the table are tested at T
A
= +25°C and guard band for the
full Temperature Range, V
IN
= 48V, V
OUT
= 5.0V, I
OUT
= 0A. Typical values are at T
A
= +25°C.
(Continued)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
ISL8560
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