参数资料
型号: MAX1536ETI+T
厂商: Maxim Integrated Products
文件页数: 10/19页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 3.6A 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 0.7 V ~ 5.5 V
输入电压: 3 V ~ 5.5 V
PWM 型: 电流模式,混合
频率 - 开关: 1.4MHz
电流 - 输出: 3.6A
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
包装: 带卷 (TR)
供应商设备封装: 28-TQFN-EP(5x5)
3.6A, 1.4MHz, Low-Voltage, Internal-Switch Step-
Down Regulator with Dynamic Output Voltage Control
L1
1.2 μ H, SUMIDA
CDR7D28MN-1R2
C OUT
V IN
+3.0V TO +5.5V
10 ?
C IN
2 X 10 μ F
+6.3V X5R
IN
LX
R A
V OUT
+0.7V TO V IN
100 μ F, +6.3V
POSCAP
2.2 μ F
100k ?
C COMP
470pF
V CC
COMP
FB
PGND
R B
POWER GOOD
PGOOD
AGND
REF
PWM MODE
IDLE MODE
SKIP
MAX1536
R1
C REF
0.22 μ F
REFIN
ON
OFF
SHDN
R2
C REFIN
470pF
OD
( )
V OUT = V FB 1 + A
FBLANK
OD
R3
R
R B
)
TOFF
GATE
V FB(LOW)
V FB(LOW) = V REF
(
R2
R1 + R2
R TOFF
75k ?
V FB(HIGH)
V FB(HIGH) = V REF
(
R2 + R3
R1 + R2 + R3
)
Figure 1. MAX1536 Standard Application Circuit
Table 1. Recommended Component Values (I OUT = 3.6A)
FULL-LOAD SWITCHING
V IN (V)
V OUT (V)
FREQUENCY
L (μH)
R TOFF (k ? )
R1 (k ? )
R2 (k ? )
R3 (k ? )
R A (k ? )
R B (k ? )
f PWM (kHz)
5
5
5
5
3.3
3.3
3.3
3.3*
2.5*
1.8/1.5**
0.7*
2.5*
1.8/1.5**
0.7*
1020
1020
820/900
450
640
840/1030
660
1.2
1.2
1.2
1.2
1.0
1.0
1.0
30.1
47.5
78.7
200
30.1
49.9
121
Short
Short
20
130
Short
20
130
Open
Open
60.4
69.8
Open
60.4
69.8
Open
Open
121
Short
Open
121
Short
6.49
2.49
Short
Short
2.49
Short
Short
10
10
Open
Open
10
Open
Open
* In single-output voltage applications, OD, OD , and GATE are general-purpose gates. If OD and OD are not used, connect GATE to
AGND and leave OD and OD open.
** The output voltage changes between two set points depending on VGATE. See the Setting Dynamic Output Voltages with REFIN section.
10
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