MAX1700EEE Maxim Integrated Products, MAX1700EEE Datasheet

IC CONV DCDC 1-3CELL HP 16-QSOP

MAX1700EEE

Manufacturer Part Number
MAX1700EEE
Description
IC CONV DCDC 1-3CELL HP 16-QSOP
Manufacturer
Maxim Integrated Products
Type
Step-Up (Boost)r
Datasheet

Specifications of MAX1700EEE

Internal Switch(s)
Yes
Synchronous Rectifier
Yes
Number Of Outputs
1
Voltage - Output
2.2 ~ 5.5 V
Current - Output
800mA
Frequency - Switching
300kHz
Voltage - Input
0.7 ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-QSOP
Power - Output
667mW
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX1700EEE
Manufacturer:
MAXIM/美信
Quantity:
20 000
Part Number:
MAX1700EEE+
Manufacturer:
Maxim Integrated Products
Quantity:
135
Part Number:
MAX1700EEE+T
Manufacturer:
MAXIM
Quantity:
137
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, 130mΩ N-
channel MOSFET switch and a 250mΩ P-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.
Digital Cordless Phones
PCS Phones
Wireless Handsets
Two-Way Pagers
19-4759; Rev 1; 1/99
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.
Pin Configurations continued at end of data sheet.
TOP VIEW
I.C. = INTERNAL CONNECTION. LEAVE OPEN OR CONNECT TO GND
CLK/SEL
GND
ONB
ONA
REF
I.C.
I.C.
I.C.
________________________________________________________________ Maxim Integrated Products
1
2
3
4
5
6
7
8
Low-Noise, Step-Up DC-DC Converters
General Description
MAX1700
QSOP
Pin Configurations
Personal Communicators
Palmtop Computers
Hand-Held Instruments
Applications
16
15
14
13
12
11
10
9
1-Cell to 3-Cell, High-Power (1A),
I.C.
POUT
OUT
LX
PGND
FB
I.C.
I.C.
MAX1700EEE
MAX1701EEE
PWM
Up to 96% Efficiency
1.1 V
0.7V to 5.5V Input Range
Up to 800mA Output
Step-Up Output (adjustable from 2.5V to 5.5V)
PWM/PFM Synchronous-Rectified Topology
External Clock or Internal 300kHz Oscillator
3µA Logic-Controlled Shutdown
Power-Good Output (MAX1701)
Low-Battery Comparator (MAX1701)
Uncommitted Gain Block (MAX1701)
PART
IN
PFM
0.7V TO 5.5V
Guaranteed Start-Up
INPUT
OR
OFF
ON
Typical Operating Circuit
SYNC
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
OFF
ON
Ordering Information
CLK/SEL
ONA
ONB
REF
FB
MAX1700
GND
PGND
POUT
OUT
LX
16 QSOP
16 QSOP
PIN-PACKAGE
Features
UP TO 800mA
3.3V OR ADJ
OUTPUT
1

Related parts for MAX1700EEE

MAX1700EEE Summary of contents

Page 1

... Input Range Up to 800mA Output Step-Up Output (adjustable from 2.5V to 5.5V) PWM/PFM Synchronous-Rectified Topology External Clock or Internal 300kHz Oscillator 3µA Logic-Controlled Shutdown Power-Good Output (MAX1701) Low-Battery Comparator (MAX1701) Uncommitted Gain Block (MAX1701) PART MAX1700EEE MAX1701EEE Applications 16 I.C. 15 POUT PWM 14 OUT ...

Page 2

... CLK/SEL = GND P-Channel Turn-Off Current CLK/SEL = GND 2 _______________________________________________________________________________________ Operating Temperature Ranges MAX1700EEE, MAX1701EEE ...........................-40°C to +85°C +0.3V Junction Temperature ......................................................+150°C POUT Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10sec) .............................+300°C = 3.6V (Note 6); MAX1701: AIN = LBN = GND, LBP = REF, OUT = +25° ...

Page 3

Low-Noise, Step-Up DC-DC Converters ELECTRICAL CHARACTERISTICS (continued) (CLK/SEL = ONA = ONB = FB = PGND = GND, OUT = POUT 0°C to +85°C, unless otherwise noted. Typical values are PARAMETER GAIN BLOCK (MAX1701) ...

Page 4

High-Power (1A), Low-Noise, Step-Up DC-DC Converters ELECTRICAL CHARACTERISTICS (continued) (CLK/SEL = ONA = ONB = FB = PGND = GND, OUT = POUT -40°C to +85°C, unless otherwise noted.) (Note 8) A PARAMETER DC-DC ...

Page 5

Low-Noise, Step-Up DC-DC Converters ELECTRICAL CHARACTERISTICS (continued) (CLK/SEL = ONA = ONB = FB = PGND = GND, OUT = POUT -40°C to +85°C, unless otherwise noted.) (Note 8) A PARAMETER LOGIC AND CONTROL INPUTS 1.2V < ...

Page 6

High-Power (1A), Low-Noise, Step-Up DC-DC Converters (T = +25°C, unless otherwise noted.) A REFERENCE VOLTAGE vs. TEMPERATURE 1.254 1.252 1.250 1.248 1.246 1.244 -40 - 100 TEMPERATURE (°C) START-UP INPUT VOLTAGE vs. ...

Page 7

Low-Noise, Step-Up DC-DC Converters (Circuit of Figure +25°C, unless otherwise noted.) A LOAD-TRANSIENT RESPONSE A B 2ms/div V = 1.1V 3.3V IN OUT A = LOAD CURRENT, 0mA TO 200mA, 0.2A/div RIPPLE, ...

Page 8

High-Power (1A), Low-Noise, Step-Up DC-DC Converters PIN NAME MAX1700 MAX1701 — 1 LBP — 2 LBN 3 3 REF 4 4 CLK/SEL 5 5 GND — 6 POK ONB ONA — ...

Page 9

Low-Noise, Step-Up DC-DC Converters OUT IC PWR 2.25V ONA ON ONB 1.25V REF REF GND CLK/SEL FEEDBACK AND FB POWER-GOOD AIN* LBP* LBN* *MAX1701 ONLY Figure 1. Functional Diagram _______________Detailed Description The MAX1700/MAX1701 are highly efficient, low-noise power supplies for ...

Page 10

High-Power (1A), Low-Noise, Step-Up DC-DC Converters 0. MBR0520L MAX1700 LX OUT D1 MAX1701 CLK/SEL POUT 10 ONA OUT ONB 0.22 F REF FB FIXED GND PGND 0.22 F OUTPUT (GND) ...

Page 11

Low-Noise, Step-Up DC-DC Converters LOGIC HIGH ERROR COMPARATOR REF R 400mA CURRENT LIMIT Figure 4. Controller Block Diagram in Low-Power PFM Mode Synchronized PWM Operation By applying an external clock to CLK/SEL, the ...

Page 12

High-Power (1A), Low-Noise, Step-Up DC-DC Converters 0. MAX1701 LX POUT CLK/SEL 10 ONA ONB OUT 0. LBP POK VOLTAGE MONITOR LBO LOW-BATTERY MONITOR LBN R4 REF AO ARBITRARY VOLTAGE MONITOR AIN ...

Page 13

Low-Noise, Step-Up DC-DC Converters The MAX1700/MAX1701 have an internal 1.250V, 1% bandgap reference. Connect a 0.22µF bypass capaci- tor to GND within 0.2in. (5mm) of the REF pin. REF can source up to 50µA of external load current. Power-OK (MAX1701) ...

Page 14

High-Power (1A), Low-Noise, Step-Up DC-DC Converters 270k MAX1701 OUT ONB ON/OFF ONA 0.1 F 270k Figure 10. Momentary Pushbutton On/Off Switch Use a Schottky diode, such as a 1N5817, MBR0520L, or equivalent. The Schottky diode carries current ...

Page 15

Low-Noise, Step-Up DC-DC Converters low-noise power for DSP, control, and RF circuitry. Typically, RF phones spend most of their life in standby mode with only short periods in transmit/receive mode. During standby, maximize battery life by setting CLK/SEL = 0; ...

Page 16

High-Power (1A), Low-Noise, Step-Up DC-DC Converters Chip Information TRANSISTOR COUNT: 531 SUBSTRATE CONNECTED TO GND ________________________________________________________Package Information 16 ______________________________________________________________________________________ ...

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