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ADP2166 の電気的特性と機能
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ADP2166のメーカーはAnalog Devicesです、この部品の機能は「Step-Down DC-to-DC Regulators」です。 |
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製品の詳細 ( Datasheet PDF )
| 部品番号 ADP2166 |
| 部品説明 Step-Down DC-to-DC Regulators |
| メーカ Analog Devices |
ロゴ |
このページの下部にプレビューとADP2166ダウンロード（pdfファイル）リンクがあります。 Total 23 pages |
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Data Sheet
5.5 V, 5 A/6 A, High Efficiency, Step-Down
DC-to-DC Regulators with Output Tracking
ADP2165/ADP2166
FEATURES
Continuous output current
ADP2165: 5 A
ADP2166: 6 A
Integrated MOSFET
High-side on resistance: 19 mΩ
Low-side on resistance: 15 mΩ
Reference voltage: 0.6 V ± 1% over temperature range
Input voltage range: 2.7 V to 5.5 V
Current mode architecture
Switching frequency
Fixed frequency: 620 kHz or 1.2 MHz
Adjustable frequency: 250 kHz to 1.4 MHz
Synchronizes to external clock: 250 kHz to 1.4 MHz
Selectable synchronize phase shift: in phase or out of phase
External compensation
Programmable soft start
Startup into a precharged output
Voltage tracking input
Power-good output and precision enable input
Accurate current limit
Available in 24-lead, 4 mm × 4 mm LFCSP_WQ package
Supported by ADIsimPower™ design tool
APPLICATIONS
Point of load regulation
Communications and networking
High end consumer
Industrial, instrumentation, and healthcare
GENERAL DESCRIPTION
The ADP2165/ADP2166 are high efficiency, current mode
control, step-down dc-to-dc regulators with an integrated 19 mΩ
high-side FET and a 15 mΩ synchronous rectified FET. The
ADP2165/ADP2166 combine a small size, 4 mm × 4 mm LFCSP
package with an accurate current limit, resulting in a smaller
inductor size and a high power density, point of load solution.
Key features include precision enable, power-good monitor,
and output voltage tracking to facilitate robust sequencing.
The switching frequency can be programmed from 250 kHz
to 1.4 MHz, or it can be fixed at 620 kHz or 1.2 MHz. The
synchronization function allows the switching frequency to
synchronize to an external clock, minimizing the
electromagnetic interference (EMI) of the system.
TYPICAL APPLICATION CIRCUIT
VPVIN
CIN
RRT
CVREG
ADP2165/
PVIN ADP2166 BST
AVIN
EN
SW
PGOOD
SYNC
RT
TRK
FB
COMP
VREG
SS
GND PGND
CBST L1
RTOP
VOUT
COUT
CCP
CSS
RC RBOT
CC
Figure 1.
The ADP2165/ADP2166 are designed to be extremely flexible
with the addition of a minimal amount of external components
to program soft start and control loop compensation.
The ADP2165/ADP2166 are supplied from an input voltage of
2.7 V to 5.5 V. Output voltage options include 3.3 V, 2.5 V, 1.8 V,
1.5 V, 1.2 V, or 1.0 V fixed outputs and adjustableoptions capable
of supporting an output voltage range from 0.6 V to 90% of the
input voltage. Protection features include undervoltage lockout
(UVLO), overvoltage protection (OVP), overcurrent protection
(OCP), and thermal shutdown (TSD) for robust performance.
The ADP2165/ADP2166 operate over the −40°C to +125°C
junction temperature range and are available in a 24-lead
LFCSP_WQ package.
100
VPVIN = 3.3V
95
90
VPVIN = 5V
85
80
75
70
65
60
55 VOUT = 1.8V
fSW = 600kHz
50
0123456
OUTPUT CURRENT (A)
Figure 2. Efficiency vs. Output Current
Rev. A
Document Feedback
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responsibility isassumed by Analog Devicesforitsuse, nor for any infringementsof patentsorother
rightsof third partiesthatmayresult fromitsuse. Specificationssubjecttochangewithout notice.No
licenseisgranted by implication or otherwiseunder any patent or patent rightsof Analog Devices.
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Tel: 78 1.32 9.47 00 ©2014–2016 Analog Devices, Inc. All rights reserved.
Technica l Support
www.analog.com
1 Page
Data Sheet
FUNCTIONAL BLOCK DIAGRAM
ADP2165/ADP2166
EN EN_BUF
1.2V
UVLO
PVIN
COMP
SS
TRK
FB
PGOOD
SYNC
RT
SLOPE RAMP
IMAX
Σ
+
OCP
–
HICCUP
MODE
VPVIN
ACS
ISS 0.6V +
+
+ AMP
–
0.7V
– OVP
0.66V –
+
–
0.54V +
+
+
CMP
–
CLK
DRIVER
CONTROL
LOGIC
VPVIN
DRIVER
NEG CURRENT
CMP
+
–
BST
NFET1
SW
NFET2
PGND
INEG
DEGLITCH
OSC
CLK
SLOPE RAMP
EN_BUF
3.3V
REGULATOR
AVIN
VREG
GND
Figure 3. ADP2165/ADP2166 Functional Block Diagram
Rev. A | Page 3 of 23
3Pages
ADP2165/ADP2166
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
PVIN, AVIN, EN, PGOOD, FB
SW
BST
SS, COMP, TRK, VREG, SYNC, RT
PGND to GND
Operating Junction Temperature Range
Storage Temperature Range
Soldering Conditions
Rating
−0.3 V to +6 V
−1 V to +6 V
SW + 6 V
−0.3 V to +6 V
−0.3 V to +0.3 V
−40°C to +125°C
−65°C to +150°C
JEDEC J-STD-020
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
Data Sheet
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, a device
soldered in a circuit board (4-layer, JEDEC standard board) for
surface-mount packages.
Table 3. Thermal Resistance
Package Type
24-Lead LFCSP
θJA
38.3
Unit
°C/W
ESD CAUTION
Rev. A | Page 6 of 23
6 Page
合計 : 23 ページ |
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データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
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| 部品番号 | 部品説明 | メーカ |
| ADP2164 | Step-Down DC-to-DC Regulator | Analog Devices |
| ADP2165 | Step-Down DC-to-DC Regulators | Analog Devices |
| ADP2166 | Step-Down DC-to-DC Regulators | Analog Devices |