900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1700 Datasheet

Step-Up DC-DC Converters

No Preview Available !

19-4759; Rev 1; 1/99
EVFAOLLULAOTWIOSNDKAITTAMSAHNEUEATL
1-Cell to 3-Cell, High-Power (1A),
Low-Noise, Step-Up DC-DC Converters
General Description
The MAX1700/MAX1701 are high-efficiency, low-noise,
step-up DC-DC converters intended for use in battery-
powered wireless applications. They use a synchro-
nous-rectified pulse-width-modulation (PWM) boost
topology to generate 2.5V to 5.5V outputs from battery
inputs such as one to three NiCd/NiMH cells or one Li-
Ion cell. Both devices have an internal 1A, 130mN-
channel MOSFET switch and a 250mP-channel
synchronous rectifier.
With their internal synchronous rectifier, the MAX1700/
MAX1701 deliver 5% better efficiency than similar non-
synchronous converters. They also feature a pulse-
frequency-modulation (PFM) standby mode to improve
efficiency at light loads, and a 3µA shutdown mode.
The MAX1700/MAX1701 come in 16-pin QSOP pack-
ages (which occupy the same space as an 8-pin SO).
The MAX1701 includes two comparators to generate
power-good and low-battery warning outputs. It also
contains a gain block that can be used to build a linear
regulator using an external P-channel pass device.
For higher-power outputs, refer to the MAX1703. For
dual outputs (step-up and linear regulator), refer to the
MAX1705/MAX1706. For an on-board analog-to-digital
converter, refer to the MAX848/MAX849.
The MAX1701 evaluation kit is available to speed design
time.
Applications
Digital Cordless Phones Personal Communicators
PCS Phones
Palmtop Computers
Wireless Handsets
Hand-Held Instruments
Two-Way Pagers
Pin Configurations
TOP VIEW
I.C. 1
I.C. 2
REF 3
CLK/SEL 4
GND 5
I.C. 6
ONB 7
ONA 8
MAX1700
16 I.C.
15 POUT
14 OUT
13 LX
12 PGND
11 FB
10 I.C.
9 I.C.
QSOP
I.C. = INTERNAL CONNECTION. LEAVE OPEN OR CONNECT TO GND
Pin Configurations continued at end of data sheet.
Features
o Up to 96% Efficiency
o 1.1 VIN Guaranteed Start-Up
o 0.7V to 5.5V Input Range
o Up to 800mA Output
o Step-Up Output (adjustable from 2.5V to 5.5V)
o PWM/PFM Synchronous-Rectified Topology
o External Clock or Internal 300kHz Oscillator
o 3µA Logic-Controlled Shutdown
o Power-Good Output (MAX1701)
o Low-Battery Comparator (MAX1701)
o Uncommitted Gain Block (MAX1701)
PART
MAX1700EEE
MAX1701EEE
Ordering Information
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 QSOP
16 QSOP
Typical Operating Circuit
INPUT
0.7V TO 5.5V
ON
OFF
OFF
ON
PWM OR
PFM SYNC
MAX1700
ONA LX
ONB
CLK/SEL POUT
OUTPUT
3.3V OR ADJ
UP TO 800mA
REF OUT
FB GND PGND
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX1700 Datasheet

Step-Up DC-DC Converters

No Preview Available !

1-Cell to 3-Cell, High-Power (1A),
Low-Noise, Step-Up DC-DC Converters
ABSOLUTE MAXIMUM RATINGS
ONA, ONB, OUT, AO, POK, LBO to GND...................-0.3V, +6V
PGND to GND.....................................................................±0.3V
LX to PGND.....................................................-0.3V,VPOUT+0.3V
CLK/SEL, AIN, REF, FB, LBP, LBN, POUT to GND............-0.3V,
VOUT+0.3V ...................................................................................
Continuous Power Dissipation (TA=+70°C)
16-QSOP (Derate 8.30mW/°C above +70°C) ...............667mW
Operating Temperature Ranges
MAX1700EEE, MAX1701EEE ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(CLK/SEL = ONA = ONB = FB = PGND = GND, OUT = POUT, VOUT = 3.6V (Note 6); MAX1701: AIN = LBN = GND, LBP = REF,
TA = 0°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
DC-DC CONVERTER
Input Voltage Range (Note 1)
CONDITIONS
MIN TYP MAX UNITS
0.7 5.5
V
Minimum Start-Up Voltage
(Note 2)
ILOAD < 1mA, TA = +25°C
0.9 1.1
V
Frequency in Start-Up Mode
VOUT = 1.5V
40 150 300 kHz
Output Voltage (Note 3)
VFB < 0.1V, CLK/SEL = OUT, VBATT = 2.4V,
includes load regulation error for 0A ILX 0.55A
3.17 3.30 3.38
V
FB Regulation Voltage
FB Input Current
Output Voltage Adjust Range
Adjustable output, CLK/SEL = OUT, VBATT = 2.4V,
includes load regulation error for 0A ILX 0.55A
VFB = 1.25V
1.210 1.24 1.255
0.01 20
2.5 5.5
V
nA
V
Output Voltage Lockout
Threshold
(Note 4)
2.0 2.15 2.3
V
Load Regulation (Note 5)
Supply Current in Shutdown
Supply Current in Low-Power
Mode (Note 6)
Supply Current in Low-Noise
Mode (Note 6)
DC-DC SWITCHES
POUT Leakage Current
LX Leakage Current
Switch On-Resistance
N-Channel Current Limit
P-Channel Turn-Off Current
CLK/SEL = OUT, No load to full load
V ONB = 3.6V
MAX1700
MAX1701
CLK/SEL = GND (MAX1700)
CLK/SEL = GND (MAX1701)
CLK/SEL = OUT (MAX1700)
CLK/SEL = OUT (MAX1701)
VLX = 0V, VOUT = 5.5V
VLX = V ONB = VOUT = 5.5V
N-channel
P-channel
CLK/SEL = OUT
CLK/SEL = GND
CLK/SEL = GND
CLK/SEL = GND
CLK/SEL = OUT
-1.6 %
0.1 20
µA
3 20
35 70
µA
55 110
125 250
µA
140 300
1100
250
20
0.1
0.1
0.2
0.13
0.25
1300
400
20
20
0.45
0.28
0.5
1600
550
120
µA
µA
mA
mA
2 _______________________________________________________________________________________


Part Number MAX1700
Description Step-Up DC-DC Converters
Maker Maxim
Total Page 16 Pages
PDF Download

MAX1700 Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 MAX170 Serial Output 5.6us 12-Bit A/D Converter
Maxim
2 MAX1700 Step-Up DC-DC Converters
Maxim
3 MAX17000 Complete DDR2 and DDR3 Memory Power-Management Solution
Maxim Integrated
4 MAX17000A Complete DDR2 and DDR3 Memory Power-Management Solution
Maxim Integrated Products
5 MAX17003 Main PowerSupply Controllers
Maxim Integrated
6 MAX17003A Main PowerSupply Controllers
Maxim Integrated
7 MAX17004 Main PowerSupply Controllers
Maxim Integrated
8 MAX17004A Main PowerSupply Controllers
Maxim Integrated
9 MAX17005 (MAX17005 - MAX17015) High-Performance Chargers
Maxim Integrated Products





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy