参数资料
型号: LTC1629IG-PG#TRPBF
厂商: Linear Technology
文件页数: 2/28页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 28-SSOP
标准包装: 2,000
系列: PolyPhase®
PWM 型: 电流模式
输出数: 1
频率 - 最大: 360kHz
占空比: 99.5%
电源电压: 4 V ~ 36 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
包装: 带卷 (TR)
LTC1629/LTC1629-PG
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
Input Supply Voltage (V IN ).........................36V to – 0.3V
Topside Driver Voltages (BOOST1,2) .........42V to – 0.3V
Switch Voltage (SW1, 2) .............................36V to – 5 V
SENSE1 + , SENSE2 + , SENSE1 – ,
SENSE2 – Voltages ........................ (1.1)INTV CC to – 0.3V
EAIN, V OS+ , V OS– , EXTV CC , INTV CC ,
RUN/SS, AMPMD, PGOOD Voltages ............7V to – 0.3V
Boosted Driver Voltage (BOOST-SW) ..........7V to – 0.3V
PLLFLTR, PLLIN, CLKOUT, PHASMD,
RUN/SS
SENSE1 +
SENSE1 –
EAIN
PLLFLTR
PLLIN
PHASMD
I TH
SGND
1
2
3
4
5
6
7
8
9
TOP VIEW
28 CLKOUT
27 TG1
26 SW1
25 BOOST1
24 V IN
23 BG1
22 EXTV CC
21 INTV CC
20 PGND
ORDER PART
NUMBER
LTC1629CG
LTC1629IG
LTC1629CG-PG
LTC1629IG-PG
V DIFFOUT Voltages ................................ INTV CC to – 0.3V
I TH Voltage ................................................2.7V to – 0.3V
Peak Output Current <1 μ s(TGL1,2, BG1,2) ................ 5A
V DIFFOUT 10
V OS – 11
V OS + 12
19 BG2
18 BOOST2
17 SW2
INTV CC RMS Output Current ................................ 50mA
Operating Ambient Temperature Range
LTC1629C/LTC1629C-PG .......................... 0 ° C to 85 ° C
LTC1629I/LTC1629I-PG ....................... – 40 ° C to 85 ° C
Junction Temperature (Note 2) ............................. 125 ° C
Storage Temperature Range ................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
SENSE2 – 13 16 TG2
SENSE2 + 14 15 AMPMD*
G PACKAGE
28-LEAD PLASTIC SSOP
*PGOOD ON LTC1629-PG
T JMAX = 125 ° C, θ JA = 95 ° C/W
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V IN = 15V, V RUN/SS = 5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Main Control Loop
V EAIN
Regulated Feedback Voltage
(Note 3); I TH Voltage = 1.2V
q
0.792
0.800
0.808
V
V SENSEMAX
Maximum Current Sense Threshold
V SENSE
– = 5V
q
62
75
88
mV
V SENSE1, 2 = 5V; LTC1629 Only
65
75
85
mV
I INEAIN
Feedback Current
(Note 3)
–5
– 50
nA
V LOADREG
Output Voltage Load Regulation
(Note 3)
Measured in Servo Loop; I TH Voltage = 0.7V
Measured in Servo Loop; I TH Voltage = 2V
q
q
0.1
– 0.1
0.5
– 0.5
%
%
V REFLNREG
Reference Voltage Line Regulation
V IN = 3.6V to 30V (Note 3)
0.002
0.02
%/V
V OVL
UVLO
Output Overvoltage Threshold
Undervoltage Lockout
Measured at V EAIN
V IN Ramping Down
q
0.84
3
0.86
3.5
0.88
4
V
V
g m
g mOL
Transconductance Amplifier g m
Transconductance Amplifier Gain
I TH = 1.2V; Sink/Source 5 μ A; (Note 3)
I TH = 1.2V; (g m xZ L ; No Ext Load); (Note 3)
3
1.5
mmho
V/mV
I Q
Input DC Supply Current
Normal Mode
Shutdown
(Note 4)
EXTV CC Tied to V OUT ; V OUT = 5V
V RUN/SS = 0V
470
20
40
μ A
μ A
I RUN/SS
Soft-Start Charge Current
V RUN/SS = 1.9V
– 0.5
– 1.2
μ A
V RUN/SS
V RUN/SSLO
I SCL
I SDLDO
RUN/SS Pin ON Threshold
RUN/SS Pin Latchoff Arming
RUN/SS Discharge Current
Shutdown Latch Disable Current
V RUN/SS Rising
V RUN/SS Rising from 3V
Soft Short Condition V EAIN = 0.5V; V RUN/SS = 4.5V
V EAIN = 0.5V
1.0
0.5
1.5
4.1
2
1.6
1.9
4.5
4
5
V
V
μ A
μ A
2
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