参数资料
| 型号： | LTC3610IWP#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/24页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 12A 64QFN |
| 标准包装： | 40 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.6 V ~ 24 V |
| 输入电压： | 4 V ~ 24 V |
| PWM 型： | 电流模式 |
| 电流 - 输出： | 12A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-VFQFN 裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 64-QFN（9x9） |
LTC3610
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C (Note 4). V IN = 15V unless otherwise noted.
SYMBOL
Δ V FB(LOADREG)
I FB
PARAMETER
Feedback Voltage Load Regulation
Feedback Input Current
CONDITIONS
I TH = 0.5V to 1.9V (Note 3)
V FB = 0.6V
MIN
TYP
–0.05
–5
MAX
–0.3
±50
UNITS
%
nA
g m(EA)
V FCB
I FCB
t ON
t ON(MIN)
t OFF(MIN)
I VALLEY(MAX)
Error Amplifier Transconductance
Forced Continuous Threshold
Forced Continuous Pin Current
On-Time
Minimum On-Time
Minimum Off-Time
Maximum Valley Current
I TH = 1.2V (Note 3)
V FCB = 0.6V
I ON = 60μA, V ON = 1.5V
I ON = 60μA, V ON = 0V
I ON = 180μA, V ON = 0V
I ON = 30μA, V ON = 1.5V
V RNG = 0.5V, V FB = 0.56V, FCB = 0V
V RNG = 0V, V FB = 0.56V, FCB = 0V
●
●
●
●
1.4
0.54
170
7
10
1.7
0.6
–1
250
120
60
290
16
19
2
0.66
–2
310
100
500
mS
V
μA
ns
ns
ns
ns
A
A
I VALLEY(MIN)
Maximum Reverse Valley Current
V RNG = 0.5V, V FB = 0.64V, FCB = 0V
V RNG = 0V, V FB = 0.64V, FCB = 0V
–6
–9
A
A
Δ V FB(OV)
Output Overvoltage Fault Threshold
7
10
13
%
V RUN/SS(ON)
V RUN/SS(LE)
V RUN/SS(LT)
RUN Pin Start Threshold
RUN Pin Latchoff Enable Threshold
RUN Pin Latchoff Threshold
RUN/SS Pin Rising
RUN/SS Pin Falling
●
0.8
1.5
4
3.5
2
4.5
4.2
V
V
V
I RUN/SS(C)
I RUN/SS(D)
V IN(UVLO)
V IN(UVLOR)
R DS(ON)
Soft-Start Charge Current
Soft-Start Discharge Current
Undervoltage Lockout
Undervoltage Lockout Release
Top Switch On-Resistance
Bottom Switch On-Resistance
V RUN/SS = 0V
V RUN/SS = 4.5V, V FB = 0V
V IN Falling
V IN Rising
●
●
–0.5
0.8
–1.2
1.8
3.4
3.5
12
6.5
–3
3
3.9
4
16
10
μA
μA
V
V
mΩ
mΩ
Internal V CC Regulator
V INTVCC
Δ V LDO(LOADREG)
V EXTVCC
Δ V EXTVCC
Internal V CC Voltage
Internal V CC Load Regulation
EXTV CC Switchover Voltage
EXTV CC Switch Drop Voltage
6V < V IN < 28V, V EXTVCC = 4V
I CC = 0mA to 20mA, V EXTVCC = 4V
I CC = 20mA, V EXTVCC Rising
I CC = 20mA, V EXTVCC = 5V
●
●
4.7
4.5
5
–0.1
4.7
150
5.5
±2
300
V
%
V
mV
Δ V EXTVCC(HYS)
EXTV CC Switchover Hysteresis
500
mV
PGOOD Output
Δ V FBH
Δ V FBL
Δ V FB(HYS)
V PGL
PGOOD Upper Threshold
PGOOD Lower Threshold
PGOOD Hysteresis
PGOOD Low Voltage
V FB Rising
V FB Falling
V FB Returning
I PGOOD = 5mA
7
–7
10
–10
1
0.15
13
–13
2.5
0.4
%
%
%
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: T J is calculated from the ambient temperature T A and power
dissipation P D as follows:
T J = T A + (P D ? 28°C/W) ( θ JA is simulated per JESD51-7 high effective
thermal conductivity test board)
θ JC = 0.24°C/W ( θ JC is simulated when heat sink is applied at the
bottom of the package).
Note 3: The LTC3610 is tested in a feedback loop that adjusts V FB to
achieve a specified error amplifier output voltage (I TH ).
Note 4: The LTC3610 is tested under pulsed load conditions such that
T J ≈ T A . The LTC3610E is guaranteed to meet performance specifications
from 0°C to 125°C. Specifications over the –40°C to 125°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LTC3610I is guaranteed over the
full –40°C to 125°C operating junction temperature range. Note that
the maximum ambient temperature is determined by specific operating
conditions in conjunction with board layout, the rated package thermal
resistance and other environmental factors.
3610ff
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