參數(shù)資料
型號(hào): FAN5250
廠商: Fairchild Semiconductor Corporation
英文描述: Mobile Processor Core-Voltage Regulator
中文描述: 移動(dòng)處理器核心電壓調(diào)節(jié)器
文件頁(yè)數(shù): 6/17頁(yè)
文件大?。?/td> 469K
代理商: FAN5250
FAN5250
6
REV. 1.1.6 3/12/03
Figure 2. IC Block Diagram
Soft Start current (I
SS
)
at start-up, V
at start-up, 1.75 > V
SS
< 0.5
20
350
9.5
1.71
26
500
10
1.75
32
650
10.5
1.78
μA
μA
μA
V
SS
> 0.5
ALTV Current Source
ALTV to VID mode threshold
PGOOD
VCORE Upper Threshold
VCORE Lower Threshold
123
77
87
127
81
94
% VID
% VID
% VID
V
μA
Falling Edge
Rising Edge
IPGOOD = 4mA
V
PULLUP
PGOOD Output Low
Leakage Current
0.5
= 5V
1
Electrical Specifications
(VCC = 5V, VIN = 5V
24V, and T
unless otherwise noted)
(continued)
A
= recommended operating ambient temperature range using circuit of Figure 1,
Parameter
Conditions
Min.
Typ.
Max.
Units
PGOOD
FPWM
EN
C
BOOT
Q1
Q2
5V
VDD
ADAPTIVE
GATE
CONTROL LOGIC
CURRENT PROCESSING
I
OUT
5
4
20
19
7
18
HDRV
SW
LDRV
PGND
BOOT
VDD
HYST
ISNS
21
VIN
C
OUT
V CORE
PWM/HYST
PWM
S/H
15
ILIM
R5
R
SENSE
ILIM det.
16
EA
HYST
14
SS
VCORE+
SS
DTY CYC
CLAMP
PWM
S
R
Q
RAMP
MODE
13
VIN
OSC
RAMP
CLK
OVP
POR/UVLO
FREQ
7
4
5
DAC and
Soft Start
3
FPWM
L
OUT
Σ
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