AIC1630ACS Analog Intergrations Corporation, AIC1630ACS Datasheet

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AIC1630ACS

Manufacturer Part Number
AIC1630ACS
Description
Manufacturer
Analog Intergrations Corporation
Datasheet
Analog Integrations Corporation
DS-1630-05
FEATURES
APPLICATIONS
TYPICAL APPLICATION CIRCUIT
Adjustable Output Voltage with Two Resistors
(AIC1630A).
Power-Saving Shutdown Mode (7µA typical).
120KHz Switching Rate.
On-Chip Low Battery Detector.
Palmtop & Notebook Computers.
Battery Charger Supply.
Cellular Telephone.
LCD Contrast Supply.
Flash Memory Programmer.
Battery Backup Supplies.
Portable Instruments.
+V
3.3V
OUT
LOAD
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
TEL: 886-3-5772500
High Efficiency Step-Up DC/DC Converter
2-Cell, Step-Up DC/DC Converter Controller
1N5819
D1
+V
Note : V
IN
L
FAX: 886-3-5772510
Q1
IN
1
≥ 1.8V , V
100Ω
R3
C1
5nF C2
270Ω
R4
OUT
+
DESCRIPTION
The AIC1630 is a DC-DC converter designed to
drive an external power switch for more flexibility,
especially in higher voltage and larger power
applications.
required to set up a step up configuration easily
achieving efficiency beyond 80%. A few more
components are required to set up a step down
configuration delivering 4A load current with 83%
typical efficiency, 86% at 2A load, and 300µA
quiescent current.
The output voltage is internally set to 3V, 3.3V, 5V
or externally set to an arbitrary value below
breakdown voltage of the power switch. Logic-
controlled shutdown mode is provided for power
saving. The low battery detector can be also
configured as a linear regulator.
120KHz switching rate reduces the inductor size.
Inductors of 25µH to 50µH inductance are
recommended for most applications.
≤ 7V
SD
VIN
EXT
SGND
AIC1630
Typically
VOUT
CGND
LBO
LBI
six
components
AIC1630
www.analog.com.tw
are
1

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AIC1630ACS Summary of contents

Page 1

FEATURES Adjustable Output Voltage with Two Resistors (AIC1630A). Power-Saving Shutdown Mode (7µA typical). 120KHz Switching Rate. On-Chip Low Battery Detector. APPLICATIONS Palmtop & Notebook Computers. Battery Charger Supply. Cellular Telephone. LCD Contrast Supply. Flash Memory Programmer. Battery Backup Supplies. Portable ...

Page 2

... ORDER NUMBER PIN CONFIGURATION AIC1630CN TOP VIEW AIC1630-3CN AIC1630-5CN SD ) (PLASTIC DIP VIN AIC1630CS EXT AIC1630-3CS SGND AIC1630-5CS (PLASTIC SO) AIC1630ACN TOP VIEW ) (PLASTIC DIP SD 1 VIN 2 AIC1630ACS EXT 3 (PLASTIC SO) GND 4 AIC1630 VOUT 1 8 LBI 2 7 LBO 3 6 CGND 4 5 VOUT 8 LBI 7 LBO ...

Page 3

ELECTRICAL CHARACTERISTICS specified.) PARAMETER Input Voltage Default Output Voltage Switch Off Current Shutdown Mode Current Recovery Time from Shutdown Efficiency Line Regulation Load Regulation Oscillator Frequency LBI Pin Trip Point FB Threshold Voltage EXT Pin Driving Capability LBO “ON Resistance” ...

Page 4

TYPICAL PERFORMANCE CHARACTERISTICS Ext Pin Sourcing Capability =5V OUT 70 Ta=25° =3V OUT 30 20 0.6 0.8 1 1.2 EXT Pin Voltage (V) Ext Pin Sinking Capability 85 80 Ta=25° ...

Page 5

TYPICAL PERFORMANCE CHARACTERISTICS Shutdown Mode Supply Current vs Input Voltage 8.2 8 Ta=25C 7.8 7.6 7.4 7 1 (V) IN Oscillator Frequency vs Input Voltage 130 120 110 Ta=25°C 100 ...

Page 6

PIN DESCRIPTION AIC1630/ AIC1630-3 / AIC1630-5 PIN The AIC1630 goes in shutdown mode and consumes less than 10 µ A when SD pin is pulled to ground and it goes in normal operating mode when the SD ...

Page 7

APPLICATION EXAMPLES V OUT 100Ω (+5V 1N5819 5nF LOAD 270Ω Fig. 1 100Ω V OUT V IN (+12V 220µF L 47µH D2 1N5819 D1 1N4148 + ...

Page 8

APPLICATION EXAMPLES VS (+3/5V 150µH 1N5819 10µ OUT (-24V 0.1µF 47µF 1.2K R3 1N5819 D2 LOAD D3 C5 47µF 5nF + C4 Fig (+3/5V 220µF L ...

Page 9

APPLICATION EXAMPLES SI9430DY 100K R4 270Ω + 9014 Q1 5.1V 100µF C1 ZD1 + 10µ 680P R5 36K Quicient Current = 300µA Fig. 7 SI9430DY 100K 270Ω ...

Page 10

APPLICATION EXAMPLES 2A FUSE VOUT SD LBI VIN LBO EXT FB GND AIC1630A + ZD1 100µF C1 4.7V Note: V ≥ 2.2V IN Charging current =0.8A, Auto-Cut-Off at 0.75/0.25% -∆V point and Fault Conditions. (R sets the ...

Page 11

PHYSICAL DIMENSIONS 8 LEAD PLASTIC SO (unit: mm LEAD PLASTIC DIP (unit: mm AIC1630 SYMBOL MIN A 1.35 A1 0.10 B ...

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