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General Description

The MAX5005/MAX5006/MAX5007 are low-dropout

(LDO), micropower linear voltage regulators with an

integrated microprocessor (µP) reset circuit for use with

USB peripheral devices. Each device is available with a

fixed +3.3V output voltage and can deliver up to

150mA load current. Each device features ±15kV tran-

sient voltage suppression (TVS) as well as precision

1.5kΩ data-line termination resistors for USB digital sig-

nals making them ideal for use with USB peripherals.

The MAX5005/MAX5006/MAX5007 include an internal

reset circuit that enables the USB microcontroller

100ms after the LDO regulator output voltage reaches

regulation. Reset outputs are available in push-pull

(active-low or active-high) and open-drain (active-low)

options.

The MAX5005/MAX5006/MAX5007 are optimized for

use with a 1µF ceramic output capacitor. Each device

includes thermal shutdown protection, output short-cir-

cuit protection, and output to input reverse leakage pro-

tection. These devices also include an active-low

manual reset input.

The MAX5005 features an open-drain reset output, the

MAX5006 features an active-low push-pull reset output,

and the MAX5007 features an active-high push-pull

reset output. Each device is available in a space-saving

10-pin µMAX package.

Applications

USB Peripherals

Hand-Held Instruments

Features

♦ Integrated ±15kV Transient Voltage Suppressors

for D+ and D- Data Lines

♦ Pin Selectable Internal D+ and D- Termination

Resistors (1.5kΩ ±5%)

♦ Integrated Microprocessor Reset Circuit with

100ms (min) Timeout

♦ 3.3V Output with ±3% Accuracy

♦ 25µA Quiescent Current at Full Load

♦ Small 1µF Output Capacitor

♦ Output to Input Reverse Leakage Protection

♦ Thermal and Short-Circuit Protection

♦ 10-Pin µMAX Package

MAX5005/MAX5006/MAX5007

150mA USB LDO Regulators with ±15kV TVS

and µP Reset

________________________________________________________________ Maxim Integrated Products 1

OUT

GND

RESET/(RESET)D-

GND

D+

MAX5005

MAX5006

MAX5007

µMAX

TOP VIEW

ENRSELR

() FOR MAX5007 ONLY.

Pin Configuration

Ordering Information

19-2035; Rev 1; 11/02

PART

TEMP

RANGE

PIN-

PACKAGE

RESET

OUTPUT

MAX5005_CUB* 0°C to +70°C 10 µMAX

Op en-

D r ai n Low

MAX5006_CUB* 0°C to +70°C 10 µMAX

Push-Pull

Low

MAX5007_CUB* 0°C to +70°C 10 µMAX

Push-Pull

High

*Insert “A” for a 7.5% reset threshold and “B” for a 12.5% reset

threshold.

D+

BUS

RSTD+

D-

D+

D-

OUT

1µF

CERAMIC

RESET

(RESET)

ENR

3.3V USB

CONTROLLER

USB

PORT

GND GND

27Ω

D-

GND

( ) FOR MAX5007 ONLY

MAX5005

MAX5006

MAX5007

OUT

3.3V

SELR

Typical Operating Circuit

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Summary of content (13 pages)

PAGE 1
9-2035; Rev 1; 11/02 150mA USB LDO Regulators with ±15kV TVS and µP Reset Features ♦ Integrated ±15kV Transient Voltage Suppressors for D+ and D- Data Lines The MAX5005/MAX5006/MAX5007 include an internal reset circuit that enables the USB microcontroller 100ms after the LDO regulator output voltage reaches regulation. Reset outputs are available in push-pull (active-low or active-high) and open-drain (active-low) options.
PAGE 2
MAX5005/MAX5006/MAX5007 150mA USB LDO Regulators with ±15kV TVS and µP Reset ABSOLUTE MAXIMUM RATINGS IN to GND .................................................................-0.3V to +6V D+, D- to GND..........................................................-0.3V to +6V MR to GND ..............................................-0.3V to (VOUT + 0.3V) RESET, RESET to GND, Push-Pull............-0.3V to (VOUT + 0.3V) RESET to GND, Open-Drain.....................................-0.
PAGE 3
150mA USB LDO Regulators with ±15kV TVS and µP Reset (VIN = +5V, IOUT = 0, COUT = 2.2µF, TA = 0°C to +70°C, unless otherwise noted. Typical specifications are at TA = +25°C.) (Note 1) PARAMETER SYMBOL SELR Input Current CONDITIONS SELR = GND or OUT VIL RTERM enabled VIH RTERM disabled MIN TYP -1 VOL Open-Drain Reset Output Leakage Current (MAX5005) ILKG Push-Pull RESET Output Voltage (MAX5006) Push-Pull RESET Output Voltage (MAX5007) VOL 1 µA V 0.
PAGE 4
Typical Operating Characteristics (VIN = +5V, IOUT = 0, COUT = 2.2µF, unless otherwise noted.) GROUND-PIN CURRENT vs. SUPPLY VOLTAGE MAXIMUM PULSE DURATION vs. RESET THRESHOLD OVERDRIVE 24.0 23.5 150 RESET OCCURS ABOVE THIS LINE 100 50 23.0 IOUT = 0 22.5 0 22.0 3.5 4.0 4.5 5.0 1 5.5 10 MAX5005-7 toc03 100 0 15 30 45 60 75 90 105 120 135 150 RESET THRESHOLD OVERDRIVE, VTH - VOUT (mV) SUPPLY VOLTAGE (V) LOAD CURRENT (mA) POWER-SUPPLY REJECTION RATIO vs. FREQUENCY OUTPUT VOLTAGE vs.
PAGE 5
150mA USB LDO Regulators with ±15kV TVS and µP Reset TURN-ON/TURN-OFF RESPONSE STARTUP RESPONSE MAX5005-7 toc08 VIN 5V/div LOAD-TRANSIENT RESPONSE MAX5005-7 toc09 MAX5005-7 toc10a 20mA ILOAD VIN 5V/div 0V VOUT 50mV/div VOUT 5V/div 3.3V VOUT 1V/div RESET 5V/div COUT = 2.2µF VOUT 50mV/div 3.3V COUT = 1.0µF RL = 1kΩ RL = 1kΩ 50ms/div 1ms/div 1.0ms/div LOAD-TRANSIENT RESPONSE LINE-TRANSIENT RESPONSE MAX5005-7 toc10b MAX5005-7 toc11a 5.25V VIN 200mV/div ILOAD 20mA 0V VOUT 50mV/div 4.
PAGE 6
150mA USB LDO Regulators with ±15kV TVS and µP Reset MAX5005/MAX5006/MAX5007 Pin Description PIN NAME DESCRIPTION 1 IN Regulator Input. Supply voltage ranges from +4.0V to +5.5V. Bypass with a 1µF ceramic capacitor to ground. 2 D+ D+ ESD/Transient Suppression Input. Connect directly to USB port D+ data input. SELR high and ENR low connects D+ to OUT through a 1.5kΩ resistor. 3, 9 GND Ground. This pin also functions as a heatsink.
PAGE 7
150mA USB LDO Regulators with ±15kV TVS and µP Reset MAX5005/MAX5006/MAX5007 IN 4.0V to 5.5V THERMAL PROTECTION REVERSE CURRENT PROTECTION OUT 3.3V CURRENT LIMIT PROTECTION MAX5005 MAX5006 MAX5007 ESD/ SURGE PROTECTION LDO ERROR AMP 200ms RESET TIMEOUT VREF 1.23V RESET/(RESET) RESET COMPARATOR GND FULL SPEED 25kΩ USB TERMINATION DRIVER LOW SPEED MR OUT OUT 1.5kΩ 1.5kΩ TVS TVS D- D+ SELR ENR GND ( ) FOR MAX5007 ONLY. Figure 1.
PAGE 8
MAX5005/MAX5006/MAX5007 150mA USB LDO Regulators with ±15kV TVS and µP Reset brownout conditions. Reset is guaranteed to be logic high or low depending on the device chosen (see Ordering Information). RESET or RESET asserts when VOUT is below the reset threshold and remains asserted for at least 100ms minimum after VOUT rises above the reset threshold. RESET or RESET also asserts when MR is pulled low. SELR and ENR When reset is not asserted a logic high to SELR connects a 1.
PAGE 9
150mA USB LDO Regulators with ±15kV TVS and µP Reset Negative-Going VOUT Transients These devices are relatively immune to short-duration, negative-going VOUT transients. The Typical Operating Characteristics section shows a graph of the Maximum Pulse Duration vs. Reset Threshold Overdrive for which reset is not asserted. The graph was produced using negative going output transients starting at VOUT and ending below the reset threshold by the magnitude indicated (Reset Threshold Overdrive).
PAGE 10
IP 100% JENNINGS RELAY RF3D-26S 200kΩ 80µH 20Ω LEAKAGE RELAY 0.2µF HIGH VOLTAGE 40µs t2 AMPERES 50% D+/D- 2µF 4kV TVS DEVICE UNDER TEST Figure 2. Surge Current Test Circut 0 0 10 12 COUT = 0 D+ OR D- TO GND 10 8/40µs PULSE WIDTH 8 CURRENT (A) CURRENT (A) 8 6 TIME 8µs t1 Figure 3. Test Circuit Surge Current Waveform (Short-Circuit Load) 12 8/40µs PULSE WIDTH 4 6 4 2 2 0 0 0 2 4 6 8 10 12 14 16 18 20 VOLTAGE (V) Figure 4.
PAGE 11
150mA USB LDO Regulators with ±15kV TVS and µP Reset CHARGE-CURRENT LIMIT RESISTOR IP 100% 90% DISCHARGE RESISTANCE MAX5005/MAX5006/MAX5007 RD 1500Ω RC 1MΩ PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) Ir AMPERES HIGHVOLTAGE DC SOURCE Cs 100pF DEVICE UNDER TEST STORAGE CAPACITOR 36.8% 10% 0 0 Figure 7. Human Body ESD Test Model TIME tRL tDL CURRENT WAVEFORM Figure 8.
PAGE 12
Chip Information 7 6 5 CURRENT (A) MAX5005/MAX5006/MAX5007 150mA USB LDO Regulators with ±15kV TVS and µP Reset 4 TRANSISTOR COUNT: 890 PROCESS: BiCMOS D+ OR D- TO GND COUT = 10µF 200ns PULSE WIDTH 3 2 1 0 0 2 4 6 8 10 12 14 16 VOLTAGE (V) Figure 12.
PAGE 13
150mA USB LDO Regulators with ±15kV TVS and µP Reset 10LUMAX.EPS e 4X S 10 10 INCHES H ÿ 0.50±0.1 0.6±0.1 1 1 0.6±0.1 BOTTOM VIEW TOP VIEW D2 MILLIMETERS MAX DIM MIN 0.043 A 0.006 A1 0.002 A2 0.030 0.037 0.120 D1 0.116 0.118 D2 0.114 E1 0.116 0.120 E2 0.114 0.118 H 0.187 0.199 L 0.0157 0.0275 L1 0.037 REF b 0.007 0.0106 e 0.0197 BSC c 0.0035 0.0078 0.0196 REF S α 0∞ 6∞ MAX MIN 1.10 0.05 0.15 0.75 0.95 2.95 3.05 2.89 3.00 2.95 3.05 2.89 3.00 4.75 5.05 0.40 0.70 0.940 REF 0.177 0.270 0.