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| 型号： | ADP1850SP-EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/32页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR ADP1850SP |
| 标准包装： | 1 |
| 主要目的： | DC/DC，步降 |
| 输出及类型： | 2，非隔离 |
| 输出电压： | 1.8V，3.3V |
| 电流 - 输出： | 14A，14A |
| 输入电压： | 10 ~ 20 V |
| 稳压器拓扑结构： | 降压 |
| 频率 - 开关： | 600kHz |
| 板类型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ADP1850SP |
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Wide Range Input, Dual/Two-Phase, DC-to-DC
Synchronous Buck Controller
Data Sheet
FEATURES
TYPICAL OPERATION CIRCUIT
Wide range input: 2.75 V to 20 V
Power stage input voltage: 1 V to 20 V
R RAMP1
V IN
Output voltage range: 0.6 V up to 90% V IN
RAMP1
VIN
DH1
BST1
VCCO
Output current to more than 25 A per channel
Accurate current sharing between channels (interleaved)
Programmable frequency: 200 kHz to 1.5 MHz
180° phase shift between channels for reduced input
capacitance
± 0.85% reference voltage accuracy from ?40°C to +85°C
ADP1850
EN1
EN2
VDL
SW1
ILIM1
FB1
TRK1
TRK2
DL1
M1
M2
L1
R11
R12
V OUT1
Integrated boost diodes
Power saving mode (PSM) at light loads
Accurate power good with internal pull-up resistor
HI
LO
PGOOD1
PGOOD2
SYNC
FREQ
PGND1
RAMP2
R CSG1
R RAMP2
V IN
Accurate voltage tracking capability
Independent channel precision enable
Overvoltage and overcurrent limit protection
Externally programmable soft start, slope compensation and
current sense gain
Synchronization input
Thermal overload protection
Input undervoltage lockout (UVLO)
COMP1
COMP2
SS1
SS2
AGND
DH2
BST2
SW2
ILIM2
FB2
DL2
PGND2
R CSG2
M3
M4
L2
R21
R22
V OUT2
Available in 32-lead 5 mm × 5 mm LFCSP
APPLICATIONS
High current single and dual output intermediate bus and
point of load converters requiring sequencing and
tracking capability, including converters for:
Point-of-load power supplies
Telecom base station and networking
Consumer
Industrial and instrumentation
Healthcare and medical
GENERAL DESCRIPTION
The ADP1850 is a configurable dual output or two-phase, single
output dc-to-dc synchronous buck controller capable of running
from commonly used 3.3 V to 12 V (up to 20 V) voltage inputs.
The device operates in current mode for improved transient
response and uses valley current sensing for enhanced noise
immunity.
The architecture enables accurate current sharing between
interleaved phases for high current outputs.
The ADP1850 is ideal in system applications requiring multiple
output voltages: the ADP1850 includes a synchronization fea-
ture to eliminate beat frequencies between switching devices;
provides accurate tracking capability between supplies and
includes precision enable for simple, robust sequencing.
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
Figure 1. Single Phase Circuit
The ADP1850 provides high speed, high peak current drive
capability with dead-time optimization to enable energy
efficient power conversion. For low load operation, the device
can be configured to operate in power saving mode (PSM) by
skipping pulses and reducing switching losses to improve the
energy efficiency at light load and standby conditions.
The accurate current limit (±6%) allows the power architect to
design within a narrower range of tolerances and can reduce
overall converter size and cost.
The ADP1850 provides a configurable architecture capable
of wide range input operation to provide the designer with
maximum re-use opportunities and improved time to market.
Additional flexibility is provided by external programmability
of loop compensation, soft start, frequency setting, power
saving mode, current limit and current sense gain can all be
programmed using external components.
The ADP1850 includes a high level of integration in a small size
package. The start-up linear regulator and the boot-strap diode
for the high side drive are included. Protection features include:
undervoltage lock-out, overvoltage, overcurrent/short-circuit
and over temperature. The ADP1850 is available in a compact
32-lead LFCSP 5 mm × 5 mm thermally enhanced package.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ?2010-2012 Analog Devices, Inc. All rights reserved.
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| ADP1851ACPZ-R7 | 功能描述:电流型 PWM 控制器 w-range input Synch StepDown DC/DC Cntr RoHS:否 制造商:Texas Instruments 开关频率:27 KHz 上升时间: 下降时间: 工作电源电压:6 V to 15 V 工作电源电流:1.5 mA 输出端数量:1 最大工作温度:+ 105 C 安装风格:SMD/SMT 封装 / 箱体:TSSOP-14 |
| ADP1851-EVALZ | 功能描述:电源管理IC开发工具 Evaluation Board 1.8V 25A Output RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| ADP1853 | 制造商:AD 制造商全称:Analog Devices 功能描述:Synchronous, Step-Down DC-to-DC Controller |
| ADP1853ACPZ-R7 | 功能描述:DC/DC 开关控制器 Synch StepDown DC/DC Cntr w/Volt trking RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| ADP1853-EVALZ | 功能描述:电源管理IC开发工具 Evaluation Board 3.3V 20A Output RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
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