MIC23050-GYML

The MIC23050-GYML is an electronic component from Micrel, Inc.. View the full MIC23050-GYML datasheet below including electrical characteristics, absolute maximum ratings.

Manufacturer

Micrel, Inc.

Overview

Part: MIC23050 — Micrel, Inc.

Type: Synchronous Buck Converter

Description: High-efficiency, 600mA, 4MHz synchronous buck regulator featuring the HyperLight Load™ switching scheme, 2.7–5.5V input, and fixed output voltages from 0.72V to 3.3V.

Operating Conditions:

Supply voltage: 2.7V to 5.5V
Operating temperature: -40 to +125 °C
Output current: 600mA
Fixed output voltage: 0.72V to 3.3V

Absolute Maximum Ratings:

Max supply voltage: 6V
Max continuous current: 2A
Max junction/storage temperature: +150 °C

Key Specs:

Quiescent Current, Hyper LL Mode: 20 μA (typ)
Shutdown Current: 0.01 μA (typ), 4 μA (max)
Output Voltage Accuracy: ±2.5 % (V IN = 3.0V, I LOAD = 20mA)
Current Limit in PWM Mode: 0.65 A (min), 1 A (typ), 1.7 A (max) (SNS = 0.9*V NOM)
Frequency: 3.4 MHz (min), 4 MHz (typ), 4.6 MHz (max) (I LOAD = 120mA)
PWM Switch ON-Resistance (PMOS): 0.45 Ω (typ) (I SW = 100mA)
PWM Switch ON-Resistance (NMOS): 0.5 Ω (typ) (I SW = -100mA)
Soft-Start Time: 650 μs (typ) (V OUT = 90%)

Features:

HyperLight Load™
Ultra-fast transient response
Low voltage output ripple (-25mVPP in HyperLight Load™ mode, -3mV in full PWM mode)
93% efficiency, ~89% at 1mA
Micropower shutdown

Applications:

Cellular phones
Digital cameras
Portable media players
Wireless LAN cards
WiFi/WiMax/WiBro modules
USB-powered devices

Package:

8-Pin 2mm x 2mm MLF®

Features

Input voltage: 2.7V to 5.5V

HyperLight Load™

600mA output current
Fixed output voltage from 0.72V to 3.3V
Ultra-fast transient response
20μA typical quiescent current
4MHz in PWM in constant-current mode
0.47μH to 2.2μH inductor
Low voltage output ripple
-25mVPP in HyperLight Load™ mode
-3mV output voltage ripple in full PWM mode
93% efficiency
~89% at 1mA
Micropower shutdown
Available in 8-pin 2mm x 2mm MLF ®
-40 ° C to +125 ° C junction temperature range

Applications

Cellular phones
Digital cameras
Portable media players
Wireless LAN cards
WiFi/WiMax/WiBro modules
USB-powered devices

____________________________________________________________________________________________________________

Pin Configuration

Pin Number	Pin Name	Pin Name
1	SW	Switch (Output): Internal power MOSFET output switches.
2	EN	Enable (Input). Logic low will shut down the device, reducing the quiescent current to less than 4μA. Do not leave floating.
3	NC	No Connect.
4	SNS	Connect to V OUT to sense output voltage.
5	CFF	Feed Forward Capacitor. Connect a 560pF capacitor from V OUT to CFF pin.
6	AGND	Analog Ground.
7	VIN	Supply Voltage (Input): Requires bypass capacitor to GND.
8	PGND	Power Ground.

8-Pin 2mm x 2mm MLF ® (ML) (Top View)

Electrical Characteristics

TA = 25 ° C with VIN = VEN = 3.6V; L = 1μH; CFF = 560pF; COUT = 4.7μF; IOUT = 20mA unless otherwise specified. Bold values indicate -40°C ≤ TJ ≤ +125°C.

Parameter	Condition	Min.	Typ.	Max.	Units
Supply Voltage Range		2.7		5.5	V
Undervoltage Lockout Threshold	(turn-on)	2.45	2.55	2.65	V
UVLO Hysteresis			100		mV
Quiescent Current, Hyper LL Mode	I OUT = 0mA , V SNS > 1.2*V OUT nominal		20	32	μA
Shutdown Current	V IN = 5.5V; V EN = 0V;		0.01	4	μA
Output Voltage Accuracy	V IN = 3.0V, I LOAD = 20mA	-2.5		2.5	%
Current Limit in PWM Mode	SNS = 0.9*V NOM	0.65	1	1.7	A
Output Voltage Line Regulation	V IN = 3.0V to 5.5V, I LOAD = 20mA		0.5		%/V
Output Voltage Load Regulation	20mA < I LOAD < 500mA,		0.3		%
Maximum Duty Cycle	SNS ≤ V NOM	80	89		%
PWM Switch ON-Resistance	I SW = 100mA PMOS I SW = - 100mA NMOS		0.45 0.5		Ω Ω
Frequency	I LOAD = 120mA	3.4	4	4.6	MHz
Soft-Start Time	V OUT = 90%		650		μs
Enable Threshold	(turn-on)	0.5	0.8	1.2	V
Enable Hysteresis			35		mV
Enable Input Current			0.1	2	μA
Over-Temperature Shutdown			165		° C
Over-Temperature Shutdown Hysteresis			20		° C

Absolute Maximum Ratings

Output Switch Voltage (V SW ) ............................................6V
Output Switch Current (I SW )..............................................2A
Logic Input Voltage (V EN , V LQ )...........................V IN to -0.3V
Junction Temperature (T J ) ....................................... + 150 ° C
Storage Temperature Range (T s )..............-65°C to +150°C
ESD Rating (3) ..................................................................3kV

Typical Application

HyperLight Load is a trademark of Micrel, Inc.

y, Inc. MLF and Micro LeadFrame are registered trademarks of Amkor Technolog

Protected by US Patent No. 7064531

l +1 (408) 944-0800 · fax + 1 (408) 474-1000 · http://www.micrel.com Micrel Inc. · 2180 Fortune Drive · San Jose, CA 95131 · USA · te

Package Information

8-Pin 2mm x 2mm MLF ® (ML)

Related Variants

The following components are covered by the same datasheet.

Part Number	Manufacturer	Package
MIC2305-1.5YML-TR	—	—
MIC23050	Micrel, Inc.	—
MIC23050-4YML	Micrel, Inc.	—
MIC23050-CYML	Micrel, Inc.	—
MIC23050-SYML	Micrel, Inc.	—

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