参数资料
型号: ADP1870ARMZ-1.0-R7
厂商: Analog Devices Inc
文件页数: 6/44页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 10-MSOP
标准包装: 1
PWM 型: 电流模式
输出数: 1
频率 - 最大: 1MHz
占空比: 45%
电源电压: 2.95 V ~ 20 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 标准包装
其它名称: ADP1870ARMZ-1.0-R7DKR

ADP1870/ADP1871
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Data Sheet
VIN 1
10
BST
COMP/EN 2
FB 3
GND 4
VREG 5
ADP1870/
ADP1871
TOP VIEW
(Not to Scale)
9
8
7
6
SW
DRVH
PGND
DRVL
NOTES
1. THE EXPOSED PAD MUST BE CONNECTED
TO GROUND.
Figure 3. Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
Mnemonic
VIN
COMP/EN
FB
GND
VREG
DRVL
PGND
DRVH
SW
BST
Description
High Input Voltage. Connect VIN to the drain of the upper-side MOSFET.
Output of the Internal Error Amplifier/IC Enable. When this pin functions as EN, applying 0 V to this pin disables the IC.
Noninverting Input of the Internal Error Amplifier. This is the node where the feedback resistor is connected.
Analog Ground Reference Pin of the IC. All sensitive analog components should be connected to this ground
plane (see the Layout Considerations section).
Internal Regulator Supply Bias Voltage for the ADP1870/ADP1871 Controller (Includes the Output Gate Drivers).
A bypass capacitor of 1 μF directly from this pin to PGND and a 0.1 μF across VREG and GND are recommended.
VREG should not be loaded externally because it is intended to only bias internal circuitry.
Drive Output for the External Lower-Side, N-Channel MOSFET. This pin also serves as the current-sense gain
setting pin (see Figure 69).
Power GND. Ground for the lower-side gate driver and lower-side, N-channel MOSFET.
Drive Output for the External Upper-Side, N-Channel MOSFET.
Switch Node Connection.
Bootstrap for the Upper-Side MOSFET Gate Drive Circuitry. An internal boot rectifier (diode) is connected
between VREG and BST. A capacitor from BST to SW is required. An external Schottky diode can also be
connected between VREG and BST for increased gate drive capability.
Rev. B | Page 6 of 44
相关PDF资料
PDF描述
VI-21D-EW-F1 CONVERTER MOD DC/DC 85V 100W
URS0J682MHD CAP ALUM 6800UF 6.3V 20% RADIAL
B41042A8127M 120UF 63V 10X20 SINGLE END
HCM28DRUH CONN EDGECARD 56POS .156 DIP SLD
VE-2W1-EY-F3 CONVERTER MOD DC/DC 12V 50W
相关代理商/技术参数
参数描述
ADP1870-BL1-EVZ 功能描述:EVAL BOARD FOR ADP1870 RoHS:是 类别:编程器,开发系统 >> 评估板 - DC/DC 与 AC/DC(离线)SMPS 系列:- 标准包装:1 系列:- 主要目的:DC/DC,步降 输出及类型:1,非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND
ADP1870-BL2-EVZ 功能描述:EVAL BOARD FOR ADP1870 RoHS:是 类别:编程器,开发系统 >> 评估板 - DC/DC 与 AC/DC(离线)SMPS 系列:- 标准包装:1 系列:- 主要目的:DC/DC,步降 输出及类型:1,非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND
ADP1871 制造商:AD 制造商全称:Analog Devices 功能描述:Synchronous Buck Controller with Constant On-Time and Valley Current Mode
ADP1871-0.3-EVALZ 功能描述:BOARD EVAL FOR ADP1871-0.3 RoHS:是 类别:编程器,开发系统 >> 评估板 - DC/DC 与 AC/DC(离线)SMPS 系列:* 标准包装:1 系列:- 主要目的:DC/DC,步降 输出及类型:1,非隔离 功率 - 输出:- 输出电压:3.3V 电流 - 输出:3A 输入电压:4.5 V ~ 28 V 稳压器拓扑结构:降压 频率 - 开关:250kHz 板类型:完全填充 已供物品:板 已用 IC / 零件:L7981 其它名称:497-12113STEVAL-ISA094V1-ND
ADP1871-0.6-EVALZ 功能描述:BOARD EVAL FOR ADP1871-0.6 RoHS:是 类别:编程器,开发系统 >> 评估板 - DC/DC 与 AC/DC(离线)SMPS 系列:* 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC,步升 输出及类型:1,非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969