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MAX8630Y, MAX8630Z

125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN

Overview

Technical Documents

Ordering Info

Status

Part Number	Status	Replacement	Explanation
MAX8630Y	This product is Not Recommended for New Designs. See Ordering Information for recommended replacements.	MAX8630W	Pin-compatible replacement offers improved line rejection.
MAX8630Z	This product is Not Recommended for New Designs. See Ordering Information for recommended replacements.	MAX8630X	Pin-compatible replacement offers improved line rejection.

Description

The MAX8630Y/MAX8630Z charge pumps drive up to 5 white LEDs with regulated constant current up to 125mA total. By utilizing adaptive 1x/1.5x charge-pump modes and very low-dropout current regulators, they achieve high efficiency over the full 1-cell Li+ battery input voltage range. The 1MHz fixed-frequency switching allows for tiny external components, and the regulation scheme is optimized to ensure low EMI and low input ripple. An integrated derating function protects the LEDs from overheating during high ambient temperatures.

The MAX8630Y/MAX8630Z are factory trimmed for full-scale LED current options of 15mA, 18mA, 20mA, and 25mA. The MAX8630Z uses two enable inputs (ENM for 3 main LEDs and ENS for 2 sub LEDs) for simple on/off control and single-wire, serial-pulse dimming in 32 linear steps. The MAX8630Y uses a single direct PWM input (PWM) to control all 5 LEDs with DC current proportional to the PWM duty cycle. If both ENM and ENS (or PWM) are kept low for more than 4ms, the MAX8630_ enters shutdown. The MAX8630Y/MAX8630Z are available in a 14-pin, 3mm x 3mm TDFN package (0.8mm max height).

Data Sheet

Download	Rev 1	(PDF, 256kB)
E-Mail

Key Features

93% Max/85% Avg. Efficiency (P_LED/P_BATT) Over Li+ Battery Discharge
1% LED Current Accuracy
125mA Total Drive Capability
Adaptive 1x/1.5x Mode Switchover
Single-Wire, Serial-Pulse Dimming (MAX8630Z)
- Independent On/Off/Dimming for Main and Sub
- Linear—Full, 31/32nd, 30/32nd, … 1/32nd
Direct-PWM Dimming (MAX8630Y)
15, 18, 20, and 25mA Full-Scale Versions
Low 0.1µA Shutdown Current
Soft-Start Eliminates Inrush Current
Output Overvoltage Protection
Thermal-Derating Function Protects LEDs
14-Pin, 3mm x 3mm TDFN Package

Applications/Uses

Cell Phones/Smartphones
Display Backlight (Up to 5 LEDs)
Main (3 LEDs) + Sub (2 LEDs) Displays
PDAs, Digital Cameras, and Camcorders

Diagram

Typical Operating Circuit

Reliability Reports

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Software/Models

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Ordering Information

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Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX8630YETD-T			NRND	MAX8630W	TDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX8630YETD15+T			NRND	MAX8630W	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8630YETD15-T			NRND	MAX8630W	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8630YETD18+T			NRND	MAX8630W	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8630YETD18-T			NRND	MAX8630W	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8630YETD20+T			NRND	MAX8630W	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8630YETD20-T			NRND	MAX8630W	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8630YETD25+T			NRND	MAX8630W	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8630YETD25-T			NRND	MAX8630W	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8630YEVKIT			NRND	MAX8630W	KIT; Land Pattern: Not Available		See data sheet
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX8630ZETD+T			NRND	MAX8630X	TDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX8630ZETD-T			NRND	MAX8630X	TDFN; Land Pattern: Not Available	-40°C to +85°C	See data sheet
MAX8630ZETD15+T			NRND	MAX8630X	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8630ZETD15-T			NRND	MAX8630X	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8630ZETD18+			NRND	MAX8630XETD18+T	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8630ZETD18+T			NRND	MAX8630XETD18+T	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8630ZETD18-T			NRND	MAX8630X	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX8630ZETD20+			NRND	MAX8630XETD20+T	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8630ZETD20+T			NRND	MAX8630XETD20+T	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8630ZETD20-T			NRND	MAX8630X	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX8630ZETD25+T			NRND	MAX8630X	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX8630ZETD25-T			NRND	MAX8630X	TDFN-EP;14 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0063 (PDF) Use pkgcode/variation: T1433-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Products with Similar Part Numbers

MAX8630W, MAX8630X	125mA 1x/1.5x Charge Pumps for 5 White LEDs in 3mm x 3mm TDFN
MAX8630XEVKIT	Evaluation Kit for the MAX8630X and MAX8630W

More Information

Topmark Coding

MAX8630Z

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Information Index

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-3689 Rev 1; 2007-03-22
This page last modified: 2007-09-19