参数资料
型号: ZL2008ALAFT1
厂商: Intersil
文件页数: 7/42页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 36-QFN
标准包装: 1,000
PWM 型: 电压模式
输出数: 1
频率 - 最大: 1.4MHz
占空比: 95%
电源电压: 3 V ~ 5.5 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: 36-VFQFN 裸露焊盘
包装: 带卷 (TR)
ZL2008
Pin Configuration
ZL2008
(36 LD QFN)
TOP VIEW
DGND
SYNC
1
2
27
26
VDD
BST
SA0
SA1
ILIM
CFG0
SCL
SDA
SALRT
3
4
5
6
7
8
9
36-Pin QFN
6 x 6 mm
Exposed Paddle
Connect to SGND
25
24
23
22
21
20
19
GH
SW
PGND
GL
VR
ISENA
ISENB
Pin Descriptions
Type
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Label
DGND
SYNC
SA0
SA1
ILIM
CFG0
SCL
SDA
SALRT
FC0
FC1
V0
V1
UVLO
SS
(Note 16)
PWR
I/O, M
(Note 17)
I, M
I, M
I, M
I/O
I/O
O
I
I
I, M
I, M
Description
Digital ground. Common return for digital signals. Connect to low impedance ground plane.
Clock synchronization input. Used to set switching frequency of internal clock or for synchronization to external
frequency reference.
Serial address select pins. Used to assign unique SMBus address to each IC or to enable certain management
features.
Current limit select. Sets the overcurrent threshold voltage for ISENA and ISENB.
Configuration pin. Used to setup current sharing and non-linear response.
Serial clock. Connect to external host and/or to other ZL devices.
Serial data. Connect to external host and/or to other ZL devices.
Serial alert. Connect to external host if desired.
Loop compensation configuration pins.
Output voltage selection pins. Used to set V OUT set-point and V OUT max.
Undervoltage lockout selection. Sets the minimum value for V DD voltage to enable V OUT .
Soft-start pin. Sets the output voltage ramp time during turn-on and turn-off. Sets the delay from when EN is
asserted until the output voltage starts to ramp.
16
17
18
19
20
VTRK
VSEN+
VSEN-
ISENB
ISENA
I
I
I
I
I
7
Tracking sense input. Used to track an external voltage source.
Output voltage feedback. Connect to output regulation point.
Output voltage feedback. Connect to load return or ground regulation point.
Differential voltage input for current limit.
Differential voltage input for current limit. High voltage tolerant.
FN6859.4
April 29, 2011
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