MAX1705 Maxim, MAX1705 Datasheet
MAX1705
Manufacturer Part Number
MAX1705
Description
1- to 3-Cell / High-Current / Low-Noise / Step-Up DC-DC Converters with Linear Regulator
Manufacturer
Maxim
Datasheet
1.MAX1705.pdf
(20 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX17050X+
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX17050X+T10
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX17050X+TG075
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
MAX17050X-C08+T10
Manufacturer:
SAMSUNG
Quantity:
7 023
Company:
Part Number:
MAX17051
Manufacturer:
MAXIM
Quantity:
7 094
Part Number:
MAX17051X
Manufacturer:
BLACKBERRYLIMITED
Quantity:
20 000
Part Number:
MAX17051X+T10
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
MAX1705EEE
Manufacturer:
MAXIM
Quantity:
12
Company:
Part Number:
MAX1705EEE+T
Manufacturer:
SHARP
Quantity:
6 223
Company:
Part Number:
MAX1705EEE-T
Manufacturer:
MAX
Quantity:
4 950
The MAX1705/MAX1706 are high-efficiency, low-noise,
step-up DC-DC converters with an auxiliary linear-
regulator output. These devices are intended for use in
battery-powered wireless applications. They use a syn-
chronous rectifier pulse-width-modulation (PWM) boost
topology to generate 2.5V to 5.5V outputs from battery
inputs, such as 1 to 3 NiCd/NiMH cells or 1 Li-Ion cell.
The MAX1705 has an internal 1A N-channel MOSFET
switch. The MAX1706 has a 0.5A switch. Both devices
also have a built-in low-dropout linear regulator that
delivers up to 200mA.
With an internal synchronous rectifier, the MAX1705/
MAX1706 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 1µA shutdown mode. An
efficiency-enhancing track mode reduces the step-up
DC-DC converter output to 300mV above the linear-reg-
ulator output.
Both devices come in a 16-pin QSOP package, which
occupies the same space as an 8-pin SO. Other features
include two shutdown-control inputs for push-on/push-off
control, and an uncommitted comparator for use as a volt-
age monitor.
________________________Applications
19-1198; Rev 0; 4/97
Step-Up DC-DC Converters with Linear Regulator
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
_______________General Description
__________________Pin Configuration
Digital Cordless Phones
Personal Communicators
Palmtop Computers
Hand-Held Instruments
TOP VIEW
TRACK
FBLDO
GND
OUT
LBP
LBN
REF
FB
________________________________________________________________ Maxim Integrated Products
1
2
3
4
5
6
7
8
MAX1705
MAX1706
QSOP
1- to 3-Cell, High-Current, Low-Noise,
16
15
14
13
12
11
10
PCS Phones
Wireless Handsets
Two-Way Pagers
9
POUT
ONA
ONB
LX
PGND
CLK/SEL
LBO
LDO
*
____________________________Features
Dice are tested at T
__________Typical Operating Circuit
EFFICIENCY
______________Ordering Information
MAX1705C/D
MAX1705EEE
MAX1706C/D
MAX1706EEE
Up to 96% Efficiency
1.1V
Up to 850mA Output (MAX1705)
Step-Up Output (2.5V to 5.5V adjustable)
Linear Regulator (1.25V to 5.0V adjustable)
PWM/PFM Synchronous-Rectified Topology
300kHz PWM Mode or Synchronizable
1µA Shutdown Mode
Voltage Monitor
Pushbutton On/Off Control
ON/OFF CONTROL
HIGH
INPUT 0.7V TO 5.5V
PART
LOW-BATTERY
DETECTION
IN
Guaranteed Start-Up
NOISE
LOW
A
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
= +25°C, DC parameters only.
0°C to +70°C
0°C to +70°C
LBO
ONA
ONB
CLK/SEL
TRACK
LBP
LBN
REF
MAX1705
MAX1706
GND
PGND
LX
FBLDO
POUT
OUT
LDO
FB
16 QSOP
16 QSOP
PIN-PACKAGE
Dice*
Dice*
STEP-UP OUTPUT
LINEAR
REGULATOR
OUTPUT
1
Related parts for MAX1705
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
The DS5250 is a highly secure, four clocks-per-machine cycle, 100% 8051-instruction-set-compatible microprocessor in Maxim's secure microcontroller family
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
The MAX9263/MAX9264 chipset extends Maxim's gigabit multimedia serial link (GMSL) technology to include high-bandwidth digital content protection (HDCP) encryption for content protection of DVD and Blu-ray™ video and audio data
Manufacturer:
Maxim
Part Number:
Description:
The Maxim MXL1016 (10ns, typ) high-speed, complementary-output comparator is designed specifically to
interface directly to TTL logic while operating from
either a dual ±5V supply or a single +5V supply
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's DG300–DG303 and DG300A–DG303A CMOS dual and quad analog switches combine low power operation with fast switching times and superior DC and AC switch characteristics
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's DG300–DG303 and DG300A–DG303A CMOS dual and quad analog switches combine low power operation with fast switching times and superior DC and AC switch characteristics
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's DG300–DG303 and DG300A–DG303A CMOS dual and quad analog switches combine low power operation with fast switching times and superior DC and AC switch characteristics
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's DG300–DG303 and DG300A–DG303A CMOS dual and quad analog switches combine low power operation with fast switching times and superior DC and AC switch characteristics
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG401/DG403/DG405 analog switches now feature guaranteed low on-resistance matching between switches (2Ω max) and guaranteed on-resistance flatness over the signal range (3Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG401/DG403/DG405 analog switches now feature guaranteed low on-resistance matching between switches (2Ω max) and guaranteed on-resistance flatness over the signal range (3Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG401/DG403/DG405 analog switches now feature guaranteed low on-resistance matching between switches (2Ω max) and guaranteed on-resistance flatness over the signal range (3Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG406 and DG407 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG406 and DG407 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG408 and DG409 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG408 and DG409 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG411/DG412/DG413 analog switches now feature low on-resistance matching between switches (3Ω max) and guaranteed on-resistance flatness over the signal range (Δ4Ω max)
Manufacturer:
Maxim
Datasheet: