参数资料
型号: DC1669A
厂商: Linear Technology
文件页数: 4/32页
文件大小: 0K
描述: BOARD EVAL LTM4627
软件下载: LTM4627 Spice Model
设计资源: LTM4627 Gerber Files
DC1669A Design Files
标准包装: 1
系列: LTM®, uModule®
主要目的: DC/DC,步升
输出及类型: 1,非隔离
输出电压: 1V,1.2V,1.5V,1.8V,2.5V,3.3V
电流 - 输出: 15A
输入电压: 4.5 ~ 20 V
稳压器拓扑结构: 降压
频率 - 开关: 500kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: LTM4627
相关产品: LTM4627IV#PBF-ND - IC UMODULE DC/DC 15A 133LGA
LTM4627EV#PBF-ND - IC UMODULE DC/DC 15A 133LGA
LTM4627
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified internal
operating temperature range, otherwise specifications are at T A = 25°C (Note 2), V IN = 12V, per the typical application in Figure 18.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V OS
A V
SR
GBP
CMRR
I DIFF_OUT
PSRR
R IN
V PGOOD
Input Offset Voltage
Differential Gain
Slew Rate
Gain Bandwidth Product
Common Mode Rejection
DIFF_OUT Current
Power Supply Rejection
Ratio
Input Resistance
PGOOD Trip Level
V OSNS+ = V DIFF_OUT = 1.5V, I DIFF_OUT = 100μA
(Note 7)
(Note 6)
(Note 6)
(Note 7)
Sourcing
5V < V IN < 20V (Note 7)
V OSNS + to GND
V FB With Respect to Set Output
V FB Ramping Negative
V FB Ramping Positive
2
1
2
3
60
100
80
–10
10
2
mV
V/V
V/μs
MHz
dB
mA
dB
%
%
V PGL
PGOOD Voltage Low
I PGOOD = 2mA
0.1
0.3
V
INTV CC Linear Regulator
V INTVCC
Internal V CC Voltage
6V < V IN < 20V
4.8
5
5.2
V
V INTVCC Load Reg INTV CC Load Regulation
I CC = 0 to 50mA
0.5
%
V EXTVCC
VLDO Ext
External V CC Switchover
EXTV CC Voltage Drop
EXTV CC Ramping Positive
I CC = 25mA, V EXTVCC = 5V
l
4.5
4.7
50
100
V
mV
Oscillator and Phase-Locked Loop
f SYNC
Frequency Sync Capture
Range
MODE_PLLIN Clock Duty Cycle = 50%
250
800
kHz
f NOM
f LOW
f HIGH
I FREQ
Nominal Frequency
Lowest Frequency
Highest Frequency
Frequency Set Current
V fSET = 1.2V
V fSET = 1V
V fSET ≥ 2.4V
450
350
700
9
500
400
770
10
550
450
850
11
kHz
kHz
kHz
μA
R MODE_PLLIN
V IH_MODE_PLLIN
V IL_MODE_PLLIN
MODE_PLLIN Input
Resistance
Clock Input Level High
Clock Input Level Low
2.0
250
0.8
V
V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTM4627 is tested under pulsed load conditions such that
T J ≈ T A . The LTM4627E is guaranteed to meet performance specifications
over the 0°C to 125°C internal operating temperature range. Specifications
over the –40°C to 125°C internal operating temperature range are assured
by design, characterization and correlation with statistical process
controls. The LTM4627I is guaranteed to meet specifications over the
–40°C to 125°C internal operating temperature range. The LTM4627MP
is guaranteed and tested over the –55°C to 125°C internal operating
temperature range. Note that the maximum ambient temperature
consistent with these specifications is determined by specific operating
conditions in conjunction with board layout, the rated package thermal
resistance and other environmental factors.
Note 3: The minimum on-time condition is specified for a peak-to-peak
inductor ripple current of ~40% of I MAX Load. (See the Applications
Information section)
Note 4: See output current derating curves for different V IN , V OUT and T A .
Note 5: Limit current into the RUN pin to less than 2mA.
Note 6: Guaranteed by design.
Note 7: 100% tested at wafer level.
4627fc
4
For more information www.linear.com/LTM4627
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